03-06 GM Truck Four Wheel Drive Selector Switch w/Auto Shift RPO Code Np8 07 Pickup Classic

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Reference Numbers
Part Number	1984-3001,
OEM	15136039, 15164520, 19259313,
SMP	TCA-47,
WELLS	SW8268,

Dimensions
5.3" x 2.5" x 2.0" 0.20 lbs

Applications
2003 - 2006	Chevrolet	Avalanche 1500
Select Year for Details	Chevrolet	Avalanche 1500
2003	Chevrolet	Avalanche 1500
Base Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
North Face Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WBH Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2004	Chevrolet	Avalanche 1500
Base Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2005	Chevrolet	Avalanche 1500
Base Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2006	Chevrolet	Avalanche 1500
LS Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2003 - 2006	Chevrolet	Avalanche 2500
Select Year for Details	Chevrolet	Avalanche 2500
2003	Chevrolet	Avalanche 2500
Base Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2004	Chevrolet	Avalanche 2500
Base Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2005	Chevrolet	Avalanche 2500
LS Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2006	Chevrolet	Avalanche 2500
LS Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2003 - 2006	Chevrolet	Silverado 1500
Select Year for Details	Chevrolet	Silverado 1500
2003	Chevrolet	Silverado 1500
Base Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2004	Chevrolet	Silverado 1500
Base Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Hybrid Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 ELECTRIC/GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Crew Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Crew Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2005	Chevrolet	Silverado 1500
Base Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Hybrid Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 ELECTRIC/GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2006	Chevrolet	Silverado 1500
LS Crew Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2007	Chevrolet	Silverado 1500 Classic
Hybrid Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 ELECTRIC/GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2003 - 2006	Chevrolet	Silverado 1500 HD
Select Year for Details	Chevrolet	Silverado 1500 HD
2003	Chevrolet	Silverado 1500 HD
LS Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2005	Chevrolet	Silverado 1500 HD
Base Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2006	Chevrolet	Silverado 1500 HD
LT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2007	Chevrolet	Silverado 1500 HD Classic
LT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2003 - 2004	Chevrolet	Silverado 2500
Select Year for Details	Chevrolet	Silverado 2500
2003	Chevrolet	Silverado 2500
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2004	Chevrolet	Silverado 2500
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2003 - 2006	Chevrolet	Silverado 2500 HD
Select Year for Details	Chevrolet	Silverado 2500 HD
2003	Chevrolet	Silverado 2500 HD
Base Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2004	Chevrolet	Silverado 2500 HD
Base Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2005	Chevrolet	Silverado 2500 HD
Base Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2006	Chevrolet	Silverado 2500 HD
LS Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2007	Chevrolet	Silverado 2500 HD Classic
LS Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2003 - 2006	Chevrolet	Silverado 3500
Select Year for Details	Chevrolet	Silverado 3500
2003	Chevrolet	Silverado 3500
Base Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2004	Chevrolet	Silverado 3500
Base Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2005	Chevrolet	Silverado 3500
Base Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2006	Chevrolet	Silverado 3500
LS Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2007	Chevrolet	Silverado 3500 Classic
LS Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2003 - 2006	Chevrolet	Suburban 1500
Select Year for Details	Chevrolet	Suburban 1500
2003	Chevrolet	Suburban 1500
LS Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2004	Chevrolet	Suburban 1500
LS Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2005	Chevrolet	Suburban 1500
LS Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2006	Chevrolet	Suburban 1500
Base Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2003 - 2006	Chevrolet	Suburban 2500
Select Year for Details	Chevrolet	Suburban 2500
2003	Chevrolet	Suburban 2500
LS Sport Utility 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Sport Utility 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2004	Chevrolet	Suburban 2500
LS Sport Utility 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Sport Utility 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2005	Chevrolet	Suburban 2500
LS Sport Utility 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Sport Utility 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2006	Chevrolet	Suburban 2500
LS Sport Utility 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Sport Utility 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2003 - 2006	Chevrolet	Tahoe
Select Year for Details	Chevrolet	Tahoe
2003	Chevrolet	Tahoe
LS Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Sport Utility 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Sport Utility 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2004	Chevrolet	Tahoe
LS Sport Utility 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Sport Utility 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2005	Chevrolet	Tahoe
LS Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Sport Utility 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2006	Chevrolet	Tahoe
Base Sport Utility 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Sport Utility 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LS Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
LT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Z71 Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2003 - 2006	GMC	Sierra 1500
Select Year for Details	GMC	Sierra 1500
2003	GMC	Sierra 1500
Base Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2004	GMC	Sierra 1500
Base Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2005	GMC	Sierra 1500
Base Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Hybrid Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 ELECTRIC/GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2006	GMC	Sierra 1500
SL Crew Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Crew Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2007	GMC	Sierra 1500 Classic
Hybrid Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 ELECTRIC/GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Crew Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	4.3L 262 Cu. In. V 6 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2003 - 2006	GMC	Sierra 1500 HD
Select Year for Details	GMC	Sierra 1500 HD
2003	GMC	Sierra 1500 HD
SLE Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2005	GMC	Sierra 1500 HD
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2006	GMC	Sierra 1500 HD
SLE Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2007	GMC	Sierra 1500 HD Classic
SLE Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2003 - 2004	GMC	Sierra 2500
Select Year for Details	GMC	Sierra 2500
2003	GMC	Sierra 2500
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2004	GMC	Sierra 2500
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2003 - 2006	GMC	Sierra 2500 HD
Select Year for Details	GMC	Sierra 2500 HD
2003	GMC	Sierra 2500 HD
Base Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2004	GMC	Sierra 2500 HD
Base Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2005	GMC	Sierra 2500 HD
Base Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2006	GMC	Sierra 2500 HD
SL Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2007	GMC	Sierra 2500 HD Classic
SL Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2003 - 2006	GMC	Sierra 3500
Select Year for Details	GMC	Sierra 3500
2003	GMC	Sierra 3500
Base Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2004	GMC	Sierra 3500
Base Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2005	GMC	Sierra 3500
Base Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
Base Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 CNG OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2006	GMC	Sierra 3500
SL Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2007	GMC	Sierra 3500 Classic
SL Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Standard Cab Pickup 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Standard Cab Pickup 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 2-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 2-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Cab & Chassis 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Crew Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Extended Cab Pickup 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
WT Standard Cab Pickup 2-Door	6.6L 403 Cu. In. V 8 DIESEL OHV Turbocharged	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2003 - 2006	GMC	Yukon
Select Year for Details	GMC	Yukon
2003	GMC	Yukon
SLE Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Sport Utility 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2004	GMC	Yukon
SLE Sport Utility 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2005	GMC	Yukon
SLE Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Sport Utility 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2006	GMC	Yukon
SL Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Sport Utility 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Sport Utility 4-Door	4.8L 294 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2003 - 2006	GMC	Yukon XL 1500
Select Year for Details	GMC	Yukon XL 1500
2003	GMC	Yukon XL 1500
SLE Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2004	GMC	Yukon XL 1500
SLE Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2005	GMC	Yukon XL 1500
SLE Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2006	GMC	Yukon XL 1500
SL Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SL Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 FLEX OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	5.3L 325 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2003 - 2006	GMC	Yukon XL 2500
Select Year for Details	GMC	Yukon XL 2500
2003	GMC	Yukon XL 2500
SLE Sport Utility 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Sport Utility 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2004	GMC	Yukon XL 2500
SLE Sport Utility 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Sport Utility 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2005	GMC	Yukon XL 2500
SLE Sport Utility 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Sport Utility 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
2006	GMC	Yukon XL 2500
SLE Sport Utility 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLE Sport Utility 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	8.1L 496 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY
SLT Sport Utility 4-Door	6.0L 364 Cu. In. V 8 GAS OHV Naturally Aspirated	With 2 Speed Push Button Shift Transfer Case (RPO Code NP8) ONLY