Engines & Engine Parts for 2003 GMC Sierra 1500
Find parts that fit
We need more information about your vehicle to confirm fit.
2003
GMC
Sierra 1500
Shop by Popular Categories
SPONSOREDSPONSOREDSPONSOREDSPONSOREDSPONSORED
27,608 Results
Full Gasket Set for 02-11 Chevy Silverado 1500 Tahoe GMC Sierra 1500 5.3L 4.8L (Fits: 2003 GMC Sierra 1500)
Brand New$81.99or Best OfferFree shippingCrankshaft & Camshaft Sensors For 99-07 Chevy Silverado 1500 S10 GMC Sierra 1500 (Fits: 2003 GMC Sierra 1500)
1 Cam Position Sensor & 1 Crankshaft Position SensorBrand New: Perfect Fit$20.03Was: $34.65Free shipping352 sold2*Valve Cover Set for 99-08 Chevy Silverado Suburban Camaro GMC Sierra 1500 NEW (Fits: More than one vehicle)
Brand New$74.35or Best OfferFree shipping11 watchingTransmission Mount for GMC Sierra 1500/ Sierra 2500/ Yukon/ Yukon XL 1500 (Fits: 2003 GMC Sierra 1500)
Brand New: RC$23.95Free shippingOnly 2 leftFor 2002-2013 GMC Sierra 1500 Oil Filter Fram 37983PSQJ 2008 2003 2004 2005 2006 (Fits: 2003 GMC Sierra 1500)
Brand New: Fram$17.17Free shippingLH & RH Valve Cover Set w/ Gasket & Bolts for 99-08 Chevy Silverado GMC Cadillac (Fits: More than one vehicle)
Brand New$78.99or Best OfferTiming Chain Kit for 99-07 Chevy Silverado 2500 GMC Sierra 1500 Cadillac Hummer (Fits: More than one vehicle)
Brand New$35.80Free shippingOil Pan For 99-06 Sierra / Silverado 1500/2500/3500 4.8L/5.3L/6.0L #12579273 (Fits: More than one vehicle)
Brand New: Star$73.66or Best OfferFree shippingAluminum Engine Valve Cover for Chevy Silverado GMC Sierra 4.8L 5.3L 5.7L 99-08 (Fits: More than one vehicle)
Brand New: partscollect$85.93or Best OfferStage 3 Cam Kit For 99-13 LS Silverado Sierra Truck GM 4.8L 5.3L 6.0L 31824100 (Fits: More than one vehicle)
Brand New$106.46Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shippingCamshaft Position Sensor for 99-07 Chevy GMC Sierra Silverado Camaro Corvette (Fits: More than one vehicle)
Order by Noon EST and this part ships today!Brand New: AM Autoparts$19.94Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Was: $42.95Free shipping237 soldFor 2002-11 Chevy Silverado 1500 Tahoe GMC Sierra 1500 5.3L 4.8L Full Gasket Set (Fits: 2003 GMC Sierra 1500)
Brand New: Unbranded$76.09Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shippingPistons with Rings @STD Fit 99-04 GMC Yukon Sierra Chevrolet Tahoe 1500 4.8L (Fits: 2003 GMC Sierra 1500)
Brand New$129.00Free shipping233 soldHead Gasket Set 2002-2011 Fits Chevrolet GMC Buick Cadillac 5.3L 4.8L V8 OHV MLS (Fits: 2003 GMC Sierra 1500)
Brand New$56.25or Best OfferFree shippingFor 1999-2008 Chevy Silverado GMC Sierra Valve Cover Set Passenger & Driver Side (Fits: More than one vehicle)
Brand New$83.99Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Was: $88.41or Best OfferCamshaft 3 Bolt Fits 99-07 Chevrolet Silverado 1500 GMC Sierra 1500 4.8L 5.3L (Fits: 2003 GMC Sierra 1500)
Brand New: TOPCN$67.54Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Was: $99.88or Best OfferFree shipping29 soldFor Chevy Silverado GMC Sierra 1500 2500 3500 Oil Pressure Sending Unit Sensor (Fits: 2003 GMC Sierra 1500)
Brand New$26.98or Best OfferFree shipping3 watching👍Valve Cover Set Passenger + Driver Side for 99-08 Chevy Silverado GMC Sierra👍 (Fits: More than one vehicle)
Brand New$78.99or Best OfferLeft Driver Side 12570427 Valve Cover For 1999-2008 Cadillac Chevy GMC Pontiac (Fits: More than one vehicle)
Brand New$40.00Was: $45.30or Best OfferFree shippingEngine Timing Cover for Chevrolet Silverado Camaro GMC Sierra Hummer Cadillac (Fits: More than one vehicle)
Brand New: Unbranded$39.99Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shippingGenuine GM Crankshaft Rear Main Crank Seal 89060436 4.8l 5.3l 6.0 LS1 LS2 LS3 LQ (Fits: 2003 GMC Sierra 1500)
Brand New$23.49or Best OfferValve Cover Gasket Set fit Chevrolet Express Silverado Sierra GMC Savana 1500 (Fits: 2003 GMC Sierra 1500)
Brand New$12.98Was: $16.23or Best OfferFree shippingOnly 1 left!Valve Stem Seal Set for GM 4.8 5.3 6.0 6.2L Silverado Savana Yukon Sierra NEW (Fits: 2003 GMC Sierra 1500)
Brand New: Unbranded$11.06Was: $13.01or Best Offer440 soldHigh Volume Performance Oil Pump for GMC Sierra 1500 LS-Series 4.8L 5.3L 6.0L (Fits: More than one vehicle)
Brand New: Unbranded$51.95Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shipping57 soldNEW FOR CHEVROLET SILVERADO 1500 S10 GMC SIERRA 1500 ENGINE OIL FILLER TUBE (Fits: 2003 GMC Sierra 1500)
Brand New$9.52or Best OfferFree shipping68 soldFull Gasket Set For Chevrolet Silverado 1500 GMC Sierra 1500 2002-2011 5.3L V6 (Fits: 2003 GMC Sierra 1500)
Brand New$76.89or Best OfferFree shippingOil Pan 12579273 For 1999-2006 Sierra / Silverado 1500/2500/3500 4.8L/5.3L/6.0L (Fits: More than one vehicle)
Brand New$72.75Trending at $74.98eBay determines this price through a machine learned model of the product's sale prices within the last 90 days.or Best OfferFree shippingLS7 Hydraulic Roller Lifters & Trays For GM LS LS1 LS2 LS3 4.8 5.3 5.7 6.0 6.2L (Fits: More than one vehicle)
Brand New: Unbranded$85.49Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Was: $94.99or Best OfferFree shippingTiming Chain Kit Cover Gasket Water Oil Pump Fit 03-06 Cadillac GMC 4.8 5.3 6.0 (Fits: 2003 GMC Sierra 1500 HD)
Brand New$169.95Free shipping191 sold2pcs For ACDelco 213-3521 Knock Sensors for Chevy Silverado Express GMC 12589867 (Fits: More than one vehicle)
Brand New$61.59Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Was: $69.99or Best OfferFree shipping16X OEM Lifters Hydraulic Roller 12499225 For G/M LS7 LS3 LS2 LQ4 4.8L 5.3L 6.0L (Fits: More than one vehicle)
Brand New: Factory/OEM$110.88or Best OfferFree shippingLH & RH Valve Cover Set w/ Gasket & Bolts for 99-08 Chevy Silverado GMC Cadillac (Fits: More than one vehicle)
Brand New: Unbranded$75.99or Best OfferRear Differential Cover for GMC Sierra 1500 Chevrolet Silverado 1500 Cadillac (Fits: More than one vehicle)
Brand New: Unbranded$36.89Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shippingHead Gasket Bolts Set For Chevy Silverado 1500 Tahoe GMC Sierra 1500 2002-2011 (Fits: 2003 GMC Sierra 1500)
Brand New$70.99Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best Offer$4.99 shippingEngine Head Gasket Set Kit For Chevrolet Silverado GMC Sierra 1500 HS26192PT (Fits: 2003 GMC Sierra 1500 HD)
Brand New$69.84or Best OfferFree shippingFor 1998-2011 GMC Chevy 4.8 5.3 6.0 6.2L Rear Main Seal Kit 12639250 12633579 (Fits: 2003 GMC Sierra 1500)
Brand New$28.48or Best OfferFree shipping111 soldFor Stage 2 LS Truck Cam Kit-Silverado Sierra 4.8 5.3 6.0 Truck Camshaft Kit (Fits: More than one vehicle)
Brand New$98.99or Best OfferFree shipping60 watchingKnock Sensor w/Harness For ACDelco For Chevy Silverado Avalanche GMC Sierra (Fits: More than one vehicle)
Brand New$59.98or Best OfferFree shippingFull Engine Gasket Set Kit For Chevrolet Express 1500 LT LS 5.3L 4.8L 2004-2008 (Fits: 2003 GMC Sierra 1500)
Brand New: Unbranded$76.99Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shippingAMS Racing MLS Head Gasket Set w Bolts for 1999-2003 Chevrolet Gen III IV 5.3L (Fits: 2003 GMC Sierra 1500)
Brand New: AMS$95.98Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
122 soldTiming Chain Kit Cover Gasket For 97-04 Cadillac Chevrolet GMC 4.8 5.3 6.0 OHV (Fits: 2003 GMC Sierra 1500)
Brand New: Star$39.59Was: $49.93or Best OfferFree shipping97-04 Cadillac GMC Pontiac "Vortec" Timing Chain Kit 4.8L 5.3L 5.7L 6.0L OHV V8 (Fits: More than one vehicle)
Brand New: OE+$26.97Was: $61.79Free shipping449 soldNEW Valve Stem Seals For 01+ GM 4.8 5.3 6.0 6.2L Silverado Savana Yukon Sierra (Fits: 2003 GMC Sierra 1500)
Brand New$10.66or Best OfferFree shippingFor Chevrolet Tahoe Silverado 1500 GMC Sierra 1500 Engine Valve Cover Gasket Set (Fits: 2003 GMC Sierra 1500)
Brand New$74.09Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shippingNew Listing01-06 CHEVY TRUCK 4.8L 5.VL 6.0L VORTEC ENGINE COVER MOUNTING BRACKET
Pre-Owned$23.00Free shipping1999-2006 Chevy Silverado GMC Sierra 4.8 5.3 6.0 ENGINE COVER 12580382 OEM (Fits: More than one vehicle)
Pre-Owned: General Motors$36.00$13.25 shipping83 soldLH + RH Valve Cover Set w/ Gasket for 02-08 Cadillac Escalade Silverado Sierra👍 (Fits: More than one vehicle)
Brand New$77.99or Best OfferFree shippingMotor & Trans Mount 3PCS 1999-2007 for Chevrolet Silverado 1500/ GMC Sierra 1500 (Fits: 2003 GMC Sierra 1500)
Brand New$64.50Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Free shipping2 watchingCrankshaft Position Sensor Kit For 1999-06 Chevy Silverado 1500 GMC Sierra 1500 (Fits: More than one vehicle)
Brand New$34.99Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best Offer3Pcs Engine Motor & Transmission Mount for Chevy Silverado GMC Sierra 1500 RWD (Fits: 2003 GMC Sierra 1500)
Brand New$87.14Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shippingLeft Driver Side 12570427 Valve Cover For 1999-2008 Cadillac Chevy GMC Pontiac (Fits: More than one vehicle)
Brand New$41.97or Best OfferFree shippingLifters Set All From 2007 GMC SIERRA 2500 HD 6.0 (Fits: More than one vehicle)
Pre-Owned: GMC$62.95or Best OfferCrankshaft Crank & Camshaft Position Sensor for 1999-2006 Chevy Silverado Tahoe (Fits: More than one vehicle)
Brand New: Unbranded$24.99Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Free shipping2x Valve Cover Set for 99-08 Chevy Silverado Suburban Camaro GMC Sierra 1500🚗 (Fits: More than one vehicle)
Brand New$77.99or Best OfferFree shippingOnly 3 leftStock Crank Main & Rod Bearings Set for Chevrolet Gen III IV LS 4.8 5.3 6.0 6.2 (Fits: 2003 GMC Sierra 1500)
Brand New: Enginetech$56.99Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
1,539 soldIntake Exhaust Valves Fit 99-13 Chevrolet GMC Hummer Isuzu 4.8 5.3 (Fits: 2003 GMC Sierra 1500)
Brand New$99.95Free shipping80 soldKnock Sensor with Harness Pair Kit Set for Chevy GMC Silverado Sierra Cadillac (Fits: More than one vehicle)
Order by Noon EST and this part ships today!Brand New: AM Autoparts$31.45Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Was: $57.95Free shipping4,939 soldFor Chevy Avalanche Express Van Suburban SaVana Yukon Engine Gasket Set New (Fits: 2003 GMC Sierra 1500)
Brand New$68.39Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Was: $71.99or Best OfferFree shippingHead Gasket Set For 2001-2003 Chevy Silverado 2500 HD Multi-Layered 8 Cyl 6.0L (Fits: 2003 GMC Sierra 1500 HD)
Hassle Free Returns. Free Fast Shipping.Brand New: Perfect Fit$64.12Was: $73.74Free shipping420 sold