Chevrolet Engines & Engine Parts for 2003 GMC Sierra 2500 HD
Find parts that fit
We need more information about your vehicle to confirm fit.
2003
GMC
Sierra 2500 HD
Shop by Popular Categories
SPONSOREDSPONSOREDSPONSOREDSPONSOREDSPONSORED
All
Auction
Buy It Now
440 Results
03-04 Chevy Silverado Sierra 6.6L 4X4 Duramax Fuel Injection Wiring Harness OEM (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$299.99or Best Offer$29.99 shippingCylinder Head Classic Style 6.0L Gasoline Fits 00-07 SIERRA 2500 PICKUP 132416 (Fits: 2003 GMC Sierra 2500 HD)
QUALITY USED OEM, FAST SHIPPING!Pre-Owned: Chevrolet$224.27or Best OfferFree shippingEngine 6.6L Turbo Diesel VIN 1 8th Digit Fits 01-04 SIERRA 2500 PICKUP 8718752 (Fits: 2003 GMC Sierra 2500 HD)
FREE RESIDENTIAL SHIPPING! RUNS GREAT! 6 MONTH WARRANTYPre-Owned: Chevrolet$3,144.53Was: $3,930.66or Best OfferFree shippingUsed Engine Assembly fits: 2005 Chevrolet Silverado 2500 pickup classic (Fits: 2003 GMC Sierra 2500 HD)
SHIPPING TO BUSINESS ADDRESS ONLY!Pre-Owned: Chevrolet$1,934.49Free shippingCylinder Head From 2004 Chevrolet Silverado 2500 6.0 317 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$194.95or Best OfferEngine 6.6L Turbo Diesel VIN 1 LB7 Fits 2004 SILVERADO 2500 PICKUP 1108058 (Fits: 2003 GMC Sierra 2500 HD)
90 DAY WARRANTYPre-Owned: Chevrolet$1,500.00$390.00 shippingCamshaft From 2004 Chevrolet Silverado 2500 6.0 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$131.95or Best OfferFree shippingLeft Cylinder Head From 2001 Chevrolet Silverado 2500 HD 6.6 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$399.95Sierra Silverado 2500 Engine 6.0L 91K MILES 2001 2002 2003 2004 2004 2005 2006 (Fits: 2003 GMC Sierra 2500 HD)
Express Savana Denali XL Yukon XL ChevroletPre-Owned: Chevrolet$1,999.00$299.00 shipping15 watchingLifter Retainers From 2001 Chevrolet Silverado 2500 HD 6.6 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$29.95or Best OfferFree shippingCylinder Head From 2001 Chevrolet Silverado 2500 6.0 317 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$199.95or Best OfferCore Long Block Engine 8.1L VIN G Fits 2002 SILVERADO 3500 PICKUP 1093825 (Fits: 2003 GMC Sierra 2500 HD)
**CORE** FOR PARTS OR REBUILDParts Only: Chevrolet$600.00$455.00 shipping2004 Chevrolet Silverado 2500 6.0L Engine 8cyl OEM 146K Miles - LKQ386191856 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$1,577.46Was: $1,796.33Free shippingCylinder Head 6.6L VIN 1 8th Digit Opt NF2 Fits 01-04 SIERRA 2500 PICKUP 520646 (Fits: 2003 GMC Sierra 2500 HD)
FREE WARRANTYPre-Owned: Chevrolet$229.00or Best OfferEngine 6.6L Turbo Diesel VIN 1 8th Digit Fits 01-04 SIERRA 2500 PICKUP 1634354 (Fits: 2003 GMC Sierra 2500 HD)
6 Month Guarantee! Founded in 1976. We are Team PRPPre-Owned: Chevrolet$2,689.79or Best OfferFree shippingEngine 8.1L VIN G 8th Digit Fits 01-03 SIERRA 2500 PICKUP 10282123 (Fits: 2003 GMC Sierra 2500 HD)
Thousands of other parts available. How can we help?Pre-Owned: Chevrolet$2,098.00or Best OfferFree shippingPushrods Set All From 2001 Chevrolet Silverado 2500 HD 6.6 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$49.95Free shipping03-06 Silverado Sierra 2500 Yukon Denali H2 6.0L LQ4 Engine Motor 8th VIN U 0649 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$1,799.99or Best Offer$600.00 shipping20 watchingValve Cover From 2001 Chevrolet Silverado 2500 HD 6.6 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$124.9599-07 SIERRA 1500 CAMARO 12556623 LS1 STYLE FRONT TIMING COVER (Fits: 2003 GMC Sierra 2500 HD)
Free and Fast Shipping via UPS Ground!Pre-Owned: Chevrolet$28.90or Best OfferPassenger RIGHT Cylinder Head 8.1L Fits 01-07 SIERRA 2500 PICKUP 1022978 (Fits: 2003 GMC Sierra 2500 HD)
ORIGINAL AS FOUNDPre-Owned: Chevrolet$200.00$70.00 shippingEngine Oil Pickup Tube From 2006 Chevrolet Silverado 2500 HD 6.0 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$29.95or Best OfferKnock Detonation Sensor From 2001 Chevrolet Silverado 3500 8.1 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$19.95or Best OfferGM 8.1L valve covers 03-07 Chevy/GMC 8.1L big block engine valve cover set (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$119.95or Best Offer99-06 Silverado 2500 6.0L Pair Left LH Right RH Motor Engine Mounts Bracket OEM (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$79.99or Best Offer2001-2004 Chevy GMC 2500 3500 6.6L Turbo Diesel Bare Engine Block W/Mains OEM
Pre-Owned: Chevrolet$649.95or Best OfferFree shippingCylinder Head Classic Style 6.0L CNG Fits 01-07 SIERRA 1500 PICKUP 1224030 (Fits: 2003 GMC Sierra 2500 HD)
Free Shipping - 90 Day Warranty - Est. 1923Pre-Owned: Chevrolet$229.00or Best Offer2007 Chevrolet Silverado 2500 6.0L Engine 8cyl OEM 175K Miles - LKQ355197181 (Fits: 2003 GMC Sierra 2500 HD)
**See Full Description for IMPORTANT Vehicle Fitment**Pre-Owned: Chevrolet$1,589.31Was: $2,251.55Free shippingNew ListingUsed Engine Assembly fits: 2002 Chevrolet Silverado 2500 pickup 6.6L tu (Fits: 2003 GMC Sierra 2500 HD)
SHIPPING TO BUSINESS ADDRESS ONLY!!!Pre-Owned: Chevrolet$2,591.09Free shippingEngine Starter Motor From 2005 Express 3500 6.0L 10466218 (Fits: 2003 GMC Sierra 2500 HD)
Over 90 Years in Business. Fast Shipping!Pre-Owned: Chevrolet$99.93Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Free shippingCylinder Head From 2001 Chevrolet Silverado 2500 6.0 317 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$199.95or Best OfferKnock Detonation Sensor From 2001 Chevrolet Silverado 3500 8.1 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$19.95or Best Offer03-06 Silverado Sierra 2500 8.1L V8 BBC Rocker Valve Cover Pair 12570556 1847 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$199.99or Best OfferTiming Cover 8.1L Fits 01-03 SIERRA 2500 PICKUP 273278 (Fits: 2003 GMC Sierra 2500 HD)
Excellent Customer Service!Pre-Owned: Chevrolet$40.25$17.92 shippingCamshaft From 2007 Chevrolet Silverado 2500 HD Classic 6.0 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$114.95or Best OfferFree shippingValve Spring Bridge Set From 2001 Chevrolet Silverado 2500 HD 6.6 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$39.95Free shippingCylinder Head Classic Style 6.0L Gasoline Fits 00-07 SIERRA 2500 PICKUP 692164 (Fits: 2003 GMC Sierra 2500 HD)
USED HEADS ARE CONSIDERED REBUILDABLEPre-Owned: Chevrolet$279.90or Best OfferCylinder Head 6.6L VIN 1 8th Digit Opt NF2 Fits 01-04 SIERRA 2500 PICKUP 744241 (Fits: 2003 GMC Sierra 2500 HD)
USED HEADS ARE CONSIDERED REBUILDABLEPre-Owned: Chevrolet$159.90or Best Offer01 02 03 04 CHEVY SILVERADO 2500 Engine/motor Assembly 6.6l Turbo Diesel (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$2,800.00Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best Offer2001-2005 Silverado Sierra 6.6L Duramax Turbo Diesel Engine Crankshaft OEM
Pre-Owned: Chevrolet$500.00or Best Offer$104.80 shippingCamshaft Position Sensor From 2003 Chevrolet Silverado 2500 6.0 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$19.95or Best OfferEngine Oil Filter Housing From 2002 Chevrolet Silverado 2500 HD 6.6 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$83.95Free shippingCamshaft From 2003 Chevrolet Silverado 2500 6.0 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$131.95or Best OfferFree shippingEngine Oil Pan From 2005 Chevrolet Silverado 2500 HD 8.1 12574836 L18 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$149.95Engine Timing Cover From 2001 Chevrolet Silverado 3500 8.1 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$48.95Lifters Set All From 2001 Chevrolet Silverado 3500 8.1 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$64.95or Best OfferFree shipping03-06 Silverado Sierra 2500 Yukon Denali H2 6.0L LQ4 Engine Motor 8th VIN U 1734 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$1,749.99or Best Offer$600.00 shippingCrankshaft Position Sensor From 2001 Chevrolet Silverado 3500 8.1 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$19.95Engine / Motor Assembly 2004 Silverado Truck/Pickup 2500 Sku#3835503 (Fits: 2003 GMC Sierra 2500 HD)
97779451, HNH, HNJ, HNK, HNL, HNM, HNN, HNP, HNR, YZF,Pre-Owned: Chevrolet$3,845.00or Best Offer$175.00 shippingCylinder Head From 2003 Chevrolet Silverado 2500 6.0 317 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$199.95or Best OfferLower Engine Oil Pan From 2007 Chevrolet Silverado 2500 HD 6.6 Diesel (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$49.95Oil Pan Creased Door Skin Fits 01-07 SIERRA 2500 PICKUP 10023832 (Fits: 2003 GMC Sierra 2500 HD)
Free shippingPre-Owned: Chevrolet$174.68Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shippingLifters Set All From 2005 Chevrolet Silverado 2500 HD 6.0 (Fits: 2003 GMC Sierra 2500 HD)
Pre-Owned: Chevrolet$59.95or Best OfferFree shippingEngine 6.0L VIN U 8th Digit Opt LQ4 Fits 03-07 HUMMER H2 262403 (Fits: 2003 GMC Sierra 2500 HD)
SHIPPING TO BUSINESS ADDRESS ONLY!!!!!!!!!!!!!!!!!!!!!!Pre-Owned: Chevrolet$1,671.63Was: $1,759.61or Best OfferFree shippingEngine 6.0L VIN U 8th Digit Opt LQ4 Fits 03-07 HUMMER H2 256279 (Fits: 2003 GMC Sierra 2500 HD)
SHIPPING TO BUSINESS ADDRESS ONLY!!!!!!!!!!!!!!!!!!!!!!Pre-Owned: Chevrolet$2,569.42or Best OfferFree shipping
Chevrolet
One stop shop for all things from your favorite brand