2003 GMC Sierra 3500 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
- 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
- Engine Swap Kits
- Intercoolers
- Throttle Bodies
- Motor Oils
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SKP®Front Passenger Side Old Style Engine MountGMC Sierra 3500 2003, Front Passenger Side Old Style Engine Mount by SKP®. 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$18.91 - $25.41 - Dayco®Poly Rib™ Serpentine BeltGMC Sierra 3500 2003, Poly Rib™ Serpentine Belt by Dayco®. 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$16.29 - $59.47
- Genuine®Timing CoverGMC Sierra 3500 6.0L 2003, Timing Cover by Genuine®. Genuine is here to give you the ultimate in quality and reliability at a cost you can afford. Designed utilizing the latest technologies and manufactured from premium materials using...Made with precision and quality in mindDesigned to meet your specific needs$58.40
- Mahle®Timing Cover Gasket SetGMC Sierra 3500 2003, Timing Cover Gasket Set by Mahle®. 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$29.62 - $85.79
- Dorman®TECHoice™ Automatic Belt TensionerGMC Sierra 3500 6.0L 2003, TECHoice™ Automatic Belt Tensioner by Dorman®. This replacement belt tensioner assembly is designed to match the fit and function of the original equipment belt tensioner on specified vehicles. Engineered...Ideal replacement - this drive belt tensioner is a direct replacement for the original tensioner on specified vehicle years, makes and modelsDurable construction - this tensioner assembly is made using quality components to ensure durability and performance$27.44 - $31.40
- Dorman®TECHoice™ Drive Belt Tensioner AssemblyGMC Sierra 3500 2003, TECHoice™ Drive Belt Tensioner Assembly by Dorman®. This replacement belt tensioner assembly is designed to match the fit and function of the original equipment belt tensioner on specified vehicles. Engineered...Ideal replacement - this drive belt tensioner is a direct replacement for the original tensioner on specified vehicle years, makes and modelsDurable construction - this tensioner assembly is made using quality components to ensure durability and performance$58.83 - $64.78
- Agility®Engine Oil PanGMC Sierra 3500 2003, Engine Oil Pan by Agility®. Agility products have gone through extensive development and testing to insure the products they sell to meet the expectations of their customers and market satisfaction.Meets or exceeds OE manufacturer's specifications100% performance and fit-tested$53.24 - $140.07
- ACDelco®GM Original Equipment™ Crankshaft Position SensorGMC Sierra 3500 2003, GM Original Equipment™ Crankshaft Position Sensor by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$65.77 - $130.76
- SMP®Crankshaft Position SensorGMC Sierra 3500 6.0L 2003, Crankshaft Position Sensor by SMP®. 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....Designed specifically for motorcycle applicationsPerfect to help you work more efficiently$62.25
- Delphi®Crankshaft Position SensorGMC Sierra 3500 2003, Crankshaft Position Sensor by Delphi®. Delphi sensors use the Hall Effect or magneto resistive (MR) principles for accurate and clean signal input to the electronic control module (ECM). The result is more design...Extensive coverageMade from high-quality materials for ultimate durability$49.78 - $63.88
- NTK®Crankshaft Position SensorGMC Sierra 3500 2003, Crankshaft Position Sensor by NTK®. Designed utilizing the latest technology, this product features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$47.81 - $67.21
- ACDelco®Specialty™ Heavy Duty V-Ribbed Serpentine BeltGMC Sierra 3500 2003, Specialty™ Heavy Duty V-Ribbed Serpentine Belt by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your...Made with precision and quality in mindDesigned to meet your specific needs$30.84 - $56.30
- ACDelco®Professional™ Drive Belt Idler PulleyGMC Sierra 3500 6.0L / 8.1L 2003, Professional™ Drive Belt Idler Pulley by ACDelco®. The ACDelco Professional, premium aftermarket Idler Pulley is designed for use on automobiles and light duty trucks as a locked center tensioning...Bearing is designed for application specific speed and load requirementsProvides reliable operation under severe conditions for year round performance$23.35
- ACDelco®Professional™ Idler PulleyGMC Sierra 3500 2003, Professional™ Idler Pulley by ACDelco®. The ACDelco Professional, premium aftermarket Idler Pulley is designed for use on automobiles and light duty trucks as a locked center tensioning pulley, an automatic belt...Bearing is designed for application specific speed and load requirementsProvides reliable operation under severe conditions for year round performance$23.08 - $61.49
- Hayden®Drive Belt Idler PulleyGMC Sierra 3500 8.1L 2003, Drive Belt Idler Pulley by Hayden®. This part is designed to route the drive belt and keep it tight. If the pulley goes bad, it can cause problems with cooling, charging, steering, and climate control. Replace...Constructed to ensure OE quality and reliabilityMade of steel and thermoplastic for long service life and superior dampening$13.03
- Hayden®Idler/Tensioner PulleyGMC Sierra 3500 2003, Idler/Tensioner Pulley by Hayden®. This part is designed to route the drive belt and keep it tight. If the pulley goes bad, it can cause problems with cooling, charging, steering, and climate control. Replace a...Constructed to ensure OE quality and reliabilityMade of steel and thermoplastic for long service life and superior dampening$13.28 - $24.47
- ACDelco®Genuine GM Parts™ Camshaft BearingGMC Sierra 3500 2003, Genuine GM Parts™ Camshaft Bearing by ACDelco®. 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$14.39 - $46.40
- ACDelco®Genuine GM Parts™ Crankshaft Main BearingGMC Sierra 3500 2003, Genuine GM Parts™ Crankshaft Main Bearing by ACDelco®. 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$8.28 - $56.90
- ACDelco®Genuine GM Parts™ Crankshaft Main Bearing SetGMC Sierra 3500 6.6L 2003, Genuine GM Parts™ Crankshaft Main Bearing Set by ACDelco®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$36.89
- Dura-Bond®Camshaft Bearing SetGMC Sierra 3500 2003, Camshaft Bearing Set by Dura-Bond®. 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 to...Made with precision and quality in mindDesigned to meet your specific needs$15.46 - $39.48
- ACDelco®Genuine GM Parts™ Intake ValveGMC Sierra 3500 2003, Genuine GM Parts™ Intake Valve by ACDelco®. 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....Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$30.78 - $34.75
- ACDelco®Genuine GM Parts™ Crankshaft SealGMC Sierra 3500 2003, Genuine GM Parts™ Crankshaft Seal by ACDelco®. 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$18.27 - $46.60
- Elring®Crankshaft SealGMC Sierra 3500 6.0L 2003, Crankshaft Seal by Elring®. 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$18.01 - $18.53
- Elring®Crankshaft SealGMC Sierra 3500 2003, Crankshaft Seal by Elring®. 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 from...Expertly Crafted from the highest grade materialsMade to provide maximum accuracy and dependability$16.43 - $29.86
- Fel-Pro®Cylinder Head GasketGMC Sierra 3500 2003, Cylinder Head Gasket by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the gaskets meet...Unsurpassed quality you can trustValidated for fit, form and function$35.69 - $76.35
- ACDelco®Genuine GM Parts™ Valve Cover Bolt SealGMC Sierra 3500 8.1L 2003, Genuine GM Parts™ Valve Cover Bolt Seal by ACDelco®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$10.64
- SKP®Driver Side Valve CoverGMC Sierra 3500 6.0L 2003, Driver Side Valve Cover by SKP®. 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...Precise engineering ensures second to none quality and lasting valueStringently tested with the highest quality standards$62.44
- ACDelco®Genuine GM Parts™ Oil CoolerGMC Sierra 3500 6.0L 2003, Genuine GM Parts™ Oil Cooler by ACDelco®. 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...Helps maintain proper engine oil operating temperaturesDesigned to deliver trouble-free, consistent performance$252.81
- Dorman®HELP™ Engine Oil Drain PlugGMC Sierra 3500 2003, HELP™ Engine Oil Drain Plug by Dorman®. Dorman's Oil Drain Plugs are coated for high corrosion resistance and a long service life. Designed using state-of-the-art technology and with customers in mind. It will...Direct replacement for a proper fit every timeDorman's oversized, piggyback, and rubber expanding plugs eliminate the need to replace the entire pan, saving you time, labor and money$2.15 - $3.56
- SKP®Pilot Point Multi-Fit Engine Oil Drain PlugGMC Sierra 3500 6.6L 2003, Pilot Point Multi-Fit Engine Oil Drain Plug by SKP®. 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$6.86
