2003 GMC Sierra 3500 Engine Components
Engine Components that fit your 2003 GMC Sierra 3500. Shop Victor Reinz, Fleece Performance, Industrial Injection and more. Every part is checked against your vehicle before it ships.
Victor ReinzMAHLE Original Cadillac Escalade 06-02 Engine Kit Gasket SetMPN vic953563$841.54In stock
Fleece PerformanceFleece Performance 01-04 GM Duramax LB7 Freedom Cylinder Head w/Cupless Injector Bore (Driver Side)MPN fpeFPE-61-10001-D-CL$1199.00In stock
Victor ReinzMAHLE Original Chevrolet Silverado 2500 Hd 04-01 Plenum TubeMPN vicG31916$4.69In stock
Victor ReinzMAHLE Original Chevrolet Silverado 2500 Hd 04-01 Valve Cover SetMPN vicVS50438$119.71In stock
Fleece PerformanceFleece Performance 01-04 GM Duramax LB7 Freedom Cylinder Head w/Cupless Injector Bore (Pssgr Side)MPN fpeFPE-61-10001-P-CL$1199.00In stock
Industrial InjectionIndustrial Injection Chevrolet LB7 Stock Remanufactured Heads New Valves / Guides / SealsMPN indPDM-LB7SH$1697.45In stock
Industrial InjectionIndustrial Injection 00-04 Chevrolet LB7 Duramax Stock Street Long BlockMPN indPDM-LB7STKLB$18429.95In stock
Victor ReinzMAHLE Original Chevrolet Silverado 2500 Hd 04-01 Head SetMPN vicHS54580$589.14In stock
Industrial InjectionIndustrial Injection 00-04 Chevrolet LB7 Duramax Stock Street Short BlockMPN indPDM-LB7STKSB$13385.95In stock
GatesGates 02-07 Chevrolet Silverado V-8 6.6L Diesel Serpentine Standard V-Ribbed BeltMPN gatK061369$84.69In stock- GatesGates 02-07 Chevrolet Silverado V-8 6.6L Diesel Serpentine Heavy Duty V-Ribbed BeltMPN gatK061369HD$100.48In stock
Industrial InjectionIndustrial Injection 00-04 Chevrolet LB7 Duramax Race Performance Long Block (w/ Arp Studs )MPN indPDM-LB7RLB$29390.95In stock
Fleece PerformanceFleece Performance 01-04 GM Duramax 6.6L LB7 Intake Air Heater Delete PlugMPN fpeFPE-LB7-IAH-DELETE$37.95In stock
Fleece PerformanceFleece Performance 01-04 GM 2500/3500 Duramax LB7 Outer Injector Connector PigtailMPN fpeFPE-HAR-DMAX-LB7-INJ-PT$29.99In stock
BD DieselBD Diesel Turbo Turnbuckle - 5/16NF Rod w/Pin 2001-2004 LB7 w/Aftermarket Turbo or WastegateMPN bdd1047116$60.95In stock
Victor ReinzMAHLE Original Chevrolet Silverado 2500 Hd 04-01 Engine Kit Gasket SetMPN vic953726$935.49In stock
Cometic GasketCometic Street Pro 01-04 GM 6.6L Duramax 4.100in Bore Top End Gasket KitMPN cgsPRO3008T$501.35In stock
Fleece PerformanceFleece Performance 01-04 GM 2500/3500 Duramax (w/Allison Transmission) NSBU PigtailsMPN fpeFPE-HAR-GM-NSBU-0104$79.99In stock- Industrial InjectionIndustrial Injection 00-04 Chevrolet LB7 Duramax Performance Short Block (No Heads)MPN indPDM-LB7RSB$22114.01In stock
Cometic GasketCometic GM LB7 Duramax Top End Gasket Kit - 4.130in Bore - .053in MLX Cylinder Head GasketMPN cgsPRO3008T-4130-053MLX$506.57In stock- Cometic GasketCometic GM LB7 Duramax Top End Gasket Kit - 4.100in Bore - .045in MLS Cylinder Head GasketMPN cgsPRO3008T-45$501.35In stock
- Victor ReinzMAHLE Original Chevrolet Silverado 2500 Hd 04-01 Valve Cover SetMPN vicVS50549$178.79In stock
OMIXOmix AC Bolt M10x1.5x65MPN omi17955.01$5.49In stock- Industrial InjectionIndustrial Injection Chevrolet LB7 Stock Reman Heads New Valves/Guide /SealsMPN indPDM-LB7SH-TL$2133.95In stock