2003 GMC Sierra Engine Parts
Select Your Submodel
- Engine Assemblies
- Motor Mounts
- Engine Blocks
- Valves & Valvetrain Parts
- Pistons, Rings & Connecting Rods
- Oil Filters
- Serpentine Belts & Auxiliary Drive Belts
- Valve Covers
- Timing Gears, Chains & Covers
- Oil Pans, Drain Plugs & Dipsticks
- Cylinder Heads
- Timing Belts
- Engine Pulleys
- Engine Sensors, Relays, Switches & Connectors
- Oil Pumps
- Drive Belt Tensioners
- Oil Coolers
- Camshafts
- Crankshafts
- Engine Management Systems
- Engine Bearings
- Harmonic Balancers
- Engine Rebuild Kits
- Oil Catch Cans
- Balance Shafts
- Engine Swap Kits
- Intercoolers
- Throttle Bodies
- Carburetors
- Motor Oils
-
Gates®Micro-V™ V-Ribbed BeltGMC Sierra 2003, Micro-V™ V-Ribbed Belt by Gates®. Gates is the largest global manufacturer of OE timing belts. This means Gates is able to cover the Aftermarket with timing belts that are OE-equivalent, or better, in service life and...Special belt construction eliminates belt noise, reduces tension loss, and solves problem drive applicationsUtilizes advanced materials like Aramid Fiber found in bullet-proof vests and crack and heat-resistant EPDM materials$16.14 - $52.14 - Dorman®HELP™ Engine Oil DipstickGMC Sierra 2003, HELP™ Engine Oil Dipstick by Dorman®. This replacement engine oil dipstick is a direct replacement for a damaged or missing original equipment dipstick. Level marks are clearly distinguished and properly gauged for...Ideal replacement - this engine oil dipstick matches the fit and function of the original equipment dipstick to ensure a dependable replacementQuality construction - this dipstick is made of the same materials as the original equipment dipstick for reliable service$14.79 - $53.50
- Fel-Pro®Engine Oil Pan Gasket SetGMC Sierra 2003, Engine Oil Pan Gasket Set by Fel-Pro®. Designed utilizing the latest technology, this product by Fel-Pro features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...Direct OEM replacement for a proper fitEnsures reliable sealing performance$19.04 - $51.72
- Cardone Reman®Engine Control ComputerGMC Sierra 2003, Engine Control Computer by Cardone Reman®. Cardone Reman Remanufactured Engine Control Modules (ECC) are engineered for quick installation and no comebacks. Each unit is engineered to meet or exceed OEM performance. All...100% resolder of critical components ensures superior electrical connections, no intermittent failures and longer product lifeAll modules are 100% tested with automated computerized test equipment to ensure functionality and reliable$163.92 - $440.36
- TRQ®Engine Oil Pressure SwitchGMC Sierra 8.1L 2003, Engine Oil Pressure Switch by TRQ®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured...Developed to comply with rigorous quality standardsExceptional quality at a budget-friendly price$34.87$35.95Save $1.08 (3%)
- TRQ®Oil Pressure SwitchGMC Sierra 2003, Oil Pressure Switch by TRQ®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$33.90$34.95Save 3%
- Dorman®OE Solutions™ Engine Oil PanGMC Sierra 2003, OE Solutions™ Engine Oil Pan by Dorman®. Oil pan leaking? This engine oil pan is precision-engineered to match the original equipment pan on specific vehicle years, makes and models for a reliable replacement.Direct replacement - this engine oil pan is made to match the original pan on specific vehiclesComplete assembly - includes replacement pan and drain plugs to match original components$68.29 - $276.12
- Dorman®Autograde™ Engine Oil Drain PlugGMC Sierra 2003, Autograde™ Engine Oil Drain Plug by Dorman®. Dorman's Oil Drain Plugs are coated for high corrosion resistance and a long service life. Designed to provide a perfect fit for a hassle free installation, this reliable...Oil Drain Plugs are designed and constructed to strict engineering quality standardsThe finest quality at a great price$1.77 - $21.38
- Walker Products®Crankshaft Position SensorGMC Sierra 2003, Crankshaft Position Sensor by Walker Products®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your...High quality at an affordable priceExpertly made from premium materials$36.14 - $58.95
- Walker Products®Camshaft Position SensorGMC Sierra 2003, Camshaft Position Sensor by Walker Products®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...High quality at an affordable priceExpertly made from premium materials$24.17 - $77.99
- Westar®Driver Side Engine MountGMC Sierra 2500 HD 6.6L 2003, Driver Side Engine Mount by Westar®. Westar's OE replacement motor mounts effectively control engine movement for vibration-free driving. Since 1986, Westar has specialized in distributing top-of-the-line...Build with quality that matches or exceeds OEM SpecificationsPerfect fit$27.56 - $78.06
- Westar®Front Driver Side Engine MountGMC Sierra 3500 6.6L 2003, Front Driver Side Engine Mount by Westar®. Without Heat Shield. Westar's OE replacement motor mounts effectively control engine movement for vibration-free driving. Since 1986, Westar has specialized in...Build with quality that matches or exceeds OEM SpecificationsPerfect fit$27.56
- Westar®Front Engine MountGMC Sierra 2003, Front Engine Mount by Westar®. Westar's OE replacement motor mounts effectively control engine movement for vibration-free driving. Since 1986, Westar has specialized in distributing top-of-the-line engine mounts and...Build with quality that matches or exceeds OEM SpecificationsPerfect fit$19.07 - $40.37
- Westar®Front Passenger Side Engine MountGMC Sierra 3500 6.6L 2003, Front Passenger Side Engine Mount by Westar®. Westar's OE replacement motor mounts effectively control engine movement for vibration-free driving. Since 1986, Westar has specialized in distributing...Build with quality that matches or exceeds OEM SpecificationsPerfect fit$27.56 - $78.06
- Westar®Passenger Side Engine MountGMC Sierra 2500 HD 6.6L 2003, Passenger Side Engine Mount by Westar®. Without Heat Shield. Westar's OE replacement motor mounts effectively control engine movement for vibration-free driving. Since 1986, Westar has specialized in...Build with quality that matches or exceeds OEM SpecificationsPerfect fit$27.56
- Dorman®OE Solutions™ Harmonic BalancerGMC Sierra 2003, OE Solutions™ Harmonic Balancer by Dorman®. Durable and sleek, Dorman Harmonic Balancers feature a stress-resistant rubber bond that withstands the damaging effects of heat, salt, ozone and general wear and tear. The...Direct replacement to ensure proper fitBenchmarked against OE performance to meet strict quality standards$82.31 - $501.63
- Dorman®OE Solutions™ Regular Grade Type Harmonic Balancer Assembly KitGMC Sierra 2003, OE Solutions™ Regular Grade Type Harmonic Balancer Assembly Kit by Dorman®. Durable and sleek, Dorman Harmonic Balancers feature a stress-resistant rubber bond that withstands the damaging effects of heat, salt, ozone...Direct replacement to ensure proper fitBenchmarked against OE performance to meet strict quality standards$45.73 - $91.76
- Gates®DriveAlign™ Automatic Belt TensionerGMC Sierra 2003, DriveAlign™ Automatic Belt Tensioner by Gates®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability....Comprehensive line includes parts to fit cars, vans, SUVs, and light trucksFull line coverage for import, domestic, and heavy-duty cars, trucks, and vehicle applications$32.79 - $64.25
- Continental® ContiTech™Serpentine BeltGMC Sierra 2003, Serpentine Belt by Continental® ContiTech™. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed...Made with precision and quality in mindDesigned to meet your specific needs$8.67 - $23.18
- Continental® ContiTech™Serpentine BeltGMC Sierra 2003, Serpentine Belt by Continental® ContiTech™. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed...Made with precision and quality in mindDesigned to meet your specific needs$14.65 - $37.10
- Spectra Premium®Crankshaft Position SensorGMC Sierra 2003, Crankshaft Position Sensor by Spectra Premium®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability....Compliant with the strictest standards for qualityExpertly crafted using the up-to-date technology$17.90 - $36.45
- Goodyear Belts®Serpentine Multi V-BeltGMC Sierra 2003, Serpentine Multi V-Belt by Goodyear Belts®. Goodyear Belts has developed multi V-belts that meet or exceed OE requirements, ensuring long belt life and quiet operation. Restore your belt drive system’s efficiency by...Meets or Exceeds OEM SpecificationsLong-life EPDM Rubber Compound$14.75 - $51.49
- Gates®Accessory Belt Drive KitGMC Sierra 2003, Accessory Belt Drive Kit by Gates®. Gates is the largest global manufacturer of OE timing belts. This means Gates is able to cover the Aftermarket with timing belts that are OE-equivalent, or better, in service life and...Performing a complete system repair doesn't add much time, but adds a lot of value (and protects against returns)Without proper tension, even the best new belt can’t efficiently transfer power$58.46 - $138.48
- TRQ®Serpentine BeltGMC Sierra 4.8L / 5.3L / 6.0L 2003, Serpentine Belt by TRQ®. Don’t wait until your serpentine belt breaks and you’ll end up getting stuck in the middle of the road, replace it on a regular basis with a reliable and cost-efficient...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$18.75 - $29.71$19.95 - $30.95Save up to 6%
- Bando®Rib Ace™ V-Ribbed Serpentine BeltGMC Sierra 2003, Rib Ace™ V-Ribbed Serpentine Belt by Bando®. Trusted by the world's Top Automakers, Bando is OE on Domestic and Import nameplates. The V-ribbed belt is precision engineered for long life under severe operating...Combines our OE technology and experience to offer an accessory drive belt that outperforms the competitionExtensive coverage for Domestic and Import applications$7.09 - $21.04
- TRQ®Drive Belt TensionerGMC Sierra 2003, Drive Belt Tensioner by TRQ®. Want to get rid of the rattling noise coming from the timing cover area? This high-grade TRQ drive belt tensioner is exactly what you need. Built to meet or exceed the OEM specifications,...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$41.75 - $61.33$43.95 - $61.95Save up to 5%
- Gates®DriveAlign™ Drive Belt Idler PulleyGMC Sierra 2003, DriveAlign™ Drive Belt Idler Pulley by Gates®. Built to last by resisting dirt, salt, and other under-hood contaminants and are designed for use on passenger cars and light trucks as a locked center tensioning pulley,...High quality construction provides high durability for long lifeBearing meets or exceeds OE and is designed for application specific speed and load requirements$17.80 - $37.96
- Mahle®Engine Oil Pan Gasket SetGMC Sierra 2003, Engine Oil Pan Gasket Set by Mahle®. Designed utilizing the latest technology, this product by Mahle features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...Made with precision and quality in mindDesigned to meet your specific needs$18.43 - $38.13
- Four Seasons®Drive Belt Idler PulleyGMC Sierra 2003, Drive Belt Idler Pulley by Four Seasons®. All products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of car parts experience, fix it once and fix it right with Four Seasons.Made with precision and quality in mindDesigned to meet your specific needs$11.23 - $15.82
- Four Seasons®Idler/Tensioner PulleyGMC Sierra 6.6L without A/C 2003, Idler/Tensioner Pulley by Four Seasons®. All products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of car parts experience, fix it once and fix it right...Made with precision and quality in mindDesigned to meet your specific needs$22.96
Popular Products
2003 GMC Sierra Engine Reviews
1 review
Posted by Albert (Salinas, CA) / October 01, 20151999 GMC Sierra
2003 GMC Sierra Models
Popular Searches