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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TRQ®Engine Oil Pan GasketGMC Sierra 3500 6.0L 2003, Engine Oil Pan Gasket by TRQ®. Want to restore the original performance of your vehicle? Get this top-grade TRQ product at a fair price. Engineered to ensure unmatched performance mile after mile, it meets the...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$64.94$66.95Save $2.01 (3%) - Original Engine Management®Oil Pressure SwitchGMC Sierra 3500 2003, Oil Pressure Switch by Original Engine Management®. 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$37.37
- Gates®Micro-V™ V-Ribbed BeltGMC Sierra 3500 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...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 3500 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...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$14.13 - $51.19
- Cardone Reman®Engine Control ComputerGMC Sierra 3500 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...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
- Dorman®Autograde™ Engine Oil Drain PlugGMC Sierra 3500 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...Oil Drain Plugs are designed and constructed to strict engineering quality standardsThe finest quality at a great price$1.77 - $21.38
- Dorman®OE Solutions™ Engine Oil PanGMC Sierra 3500 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$42.91 - $182.93
- TRQ®Engine Oil Pressure SwitchGMC Sierra 3500 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....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 3500 6.6L 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$33.90$34.95Save $1.05 (3%)
- Walker Products®Crankshaft Position SensorGMC Sierra 3500 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...High quality at an affordable priceExpertly made from premium materials$36.14 - $58.95
- 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$27.33
- Westar®Front Engine MountGMC Sierra 3500 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...Build with quality that matches or exceeds OEM SpecificationsPerfect fit$21.35 - $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$27.33 - $78.06
- ACDelco®GM Original Equipment™ Serpentine BeltGMC Sierra 3500 2003, GM Original Equipment™ Serpentine Belt by ACDelco®. Designed utilizing the latest technology, this GM Original Equipment Serpentine Belt by ACDelco features premium quality and will perform better than...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$26.44 - $64.54
- TRQ®Serpentine BeltGMC Sierra 3500 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 solution...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$18.75 - $29.71$19.95 - $30.95Save up to 6%
- Continental® ContiTech™Primary Serpentine BeltGMC Sierra 3500 2003, Primary 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...Made with precision and quality in mindDesigned to meet your specific needs$32.10 - $37.10
- Walker Products®Camshaft Position SensorGMC Sierra 3500 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...High quality at an affordable priceExpertly made from premium materials$33.49 - $77.99
- Dorman®OE Solutions™ Center Inner Regular Grade Type Harmonic Balancer Assembly KitGMC Sierra 3500 2003, OE Solutions™ Center Inner 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...Direct replacement to ensure proper fitBenchmarked against OE performance to meet strict quality standards$96.30
- Dorman®OE Solutions™ Harmonic BalancerGMC Sierra 3500 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....Direct replacement to ensure proper fitBenchmarked against OE performance to meet strict quality standards$82.31 - $501.43
- Goodyear Belts®Serpentine Multi V-BeltGMC Sierra 3500 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...Meets or Exceeds OEM SpecificationsLong-life EPDM Rubber Compound$14.75 - $51.49
- Spectra Premium®Crankshaft Position SensorGMC Sierra 3500 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
- Fel-Pro®Cylinder Head Gasket SetGMC Sierra 3500 2003, Cylinder Head Gasket Set by Fel-Pro®. 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...Proprietary coating - nonstick anti-friction coating seals small surface scratches and imperfectionsSealing technologies - exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair$226.05 - $241.49
- Four Seasons®Drive Belt Idler PulleyGMC Sierra 3500 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...Made with precision and quality in mindDesigned to meet your specific needs$11.36 - $16.32
- Four Seasons®Idler/Tensioner PulleyGMC Sierra 3500 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...Made with precision and quality in mindDesigned to meet your specific needs$23.52
- Gates®Accessory Belt Drive KitGMC Sierra 3500 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...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
- DEA®Front Driver Side Engine MountGMC Sierra 3500 2003, Front Driver Side Engine Mount by DEA®. Designed to meet all OE standards and specifications, these engine mounts will fit your vehicle with no modifications. They will safely connect the engine to the car frame...Designed to meet or exceed OE specificationsConstructed to deliver consistent performance$33.75 - $52.25
- DEA®Front Passenger Side Engine MountGMC Sierra 3500 2003, Front Passenger Side Engine Mount by DEA®. Designed to meet all OE standards and specifications, these engine mounts will fit your vehicle with no modifications. They will safely connect the engine to the car frame...Designed to meet or exceed OE specificationsConstructed to deliver consistent performance$48.38 - $52.05
- Dorman®OE Solutions™ Aluminum Timing Chain CoverGMC Sierra 3500 6.0L 2003, OE Solutions™ Aluminum Timing Chain Cover by Dorman®. This direct replacement timing cover matches the fit and function of the original equipment cover for a reliable repair. This part has undergone...Direct replacement - this engine timing cover matches the fit and function of the original equipment coverDurable construction - this part is specifically designed to withstand extreme underhood temperatures for a long service life$80.38
- Apex Auto®Cylinder Head Gasket SetGMC Sierra 3500 2003, Cylinder Head Gasket Set by Apex Auto®. Designed utilizing the latest technology, this product by Apex Auto features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle,...Quick accurate delivery with excellent fill-rateExcellent inventory availability$171.84 - $172.59
- TRQ®Drive Belt TensionerGMC Sierra 3500 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$41.75 - $60.09$43.95 - $61.95Save up to 5%
