2003 Peterbilt 379 Engine
Select Your Submodel
- 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
- Oil Pumps
- Oil Coolers
- Camshafts
- Crankshafts
- Engine Management Systems
- Engine Bearings
- Engine Rebuild Kits
- Intercoolers
- Throttle Bodies
- Motor Oils
- Baldwin Filters®Engine Oil FilterPeterbilt 379 2003, Engine Oil Filter by Baldwin Filters®. Dirty oil can cause catastrophic damage to your engine. By using the proper lube filter for your engine, you can minimize the possibility of costly downtime and repairs. Baldwin...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$22.16 - $74.11
- WIX®Engine Oil FilterPeterbilt 379 2003, Engine Oil Filter by WIX®. Designed utilizing the latest technology, this product by Wix features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to...You use conventional, synthetic or synthetic-blended motor oilsYour drives are stop-and-go, either in the city or in heavy traffic$24.44 - $82.33
- WIX®Engine Oil FilterPeterbilt 379 2003, Engine Oil Filter by WIX®. Designed utilizing the latest technology, this product by Wix features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to...You use conventional, synthetic or synthetic-blended motor oilsYour drives are stop-and-go, either in the city or in heavy traffic$24.44 - $82.33
- PAI®Engine Gasket KitPeterbilt 379 2003, Engine Gasket Kit by PAI®. 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...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$10.36 - $4,491.75
- PAI®High Performance Piston Ring SetPeterbilt 379 3406 Engine 2003, High Performance Piston Ring Set by PAI®. 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...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$70.44
- PAI®Mounting GasketPeterbilt 379 14.9L 2003, Mounting Gasket by PAI®. Sold Individually. 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....2 Years WarrantyPerfect blend of leading innovations and superior workmanship$11.48
- PAI®Piston Ring KitPeterbilt 379 2003, Piston Ring Kit by PAI®. 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...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$88.10 - $121.72
- PAI®Engine Oil DipstickPeterbilt 379 12.7L 2003, Engine Oil Dipstick by PAI®. 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...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$31.77
- Gates®Truck BeltPeterbilt 379 14.6L / 15.8L 2003, Truck Belt by Gates®. Length: 54.5". Absorbs normal shock loads without damage to belt. This premium product is the best way to go for those looking for the highest quality replacement that offers...Special tensile cords give high stretch resistanceSpecial notch design resists cracking while providing tensile member support during operation$27.65
- Gates®FleetRunner™ Heavy Duty V-BeltPeterbilt 379 with A/C 2003, FleetRunner™ Heavy Duty V-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,...The finest quality at a great priceGates carries everything needed to complete the job$21.02 - $24.40
- Gates®Micro-V™ V-Ribbed BeltPeterbilt 379 L6 10.3L / 12.0L 2003, Micro-V™ V-Ribbed Belt by Gates®. Length: 74.66". Gates is the largest global manufacturer of OE timing belts. This means Gates is able to cover the Aftermarket with timing belts that are...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$39.19
- Gates®DriveAlign™ Drive Belt Idler PulleyPeterbilt 379 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...High quality construction provides high durability for long lifeBearing meets or exceeds OE and is designed for application specific speed and load requirements$31.85
- Continental® ContiTech™Elite™ Drive Belt Idler AssemblyPeterbilt 379 2003, Elite™ Drive Belt Idler Assembly by Continental® ContiTech™. Every part in this assembly is engineered to look, install, and operate the same way or better than the factory parts. Every component meets original...Original equipment equivalentFactory-like fit and dependability$30.49
- Dayco®No Slack™ Heavy Duty Automatic Belt Tensioner AssemblyPeterbilt 379 2003, No Slack™ Heavy Duty Automatic Belt Tensioner Assembly by Dayco®. Serpentine belt drives consist of a single belt that powers most, if not all, of the engine’s accessories. Designed to maintain constant tension...Heavy duty cast aluminum spring case that resists cracking and fatigueSteel pivot tube which provides additional strength for critical torque requirements$163.36 - $183.04
- PAI®Crankshaft Seal KitPeterbilt 379 2003, Crankshaft Seal Kit by PAI®. 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...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$32.32 - $90.81
- PAI®Crankshaft Seal KitPeterbilt 379 2003, Crankshaft Seal Kit by PAI®. 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...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$32.32 - $90.81
- PAI®Engine Oil Pan GasketPeterbilt 379 2003, Engine Oil Pan Gasket by PAI®. 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...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$23.91 - $206.33
- Agility®Engine Oil PanPeterbilt 379 14.9L 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$214.94
- Dorman HD Solutions®Engine Oil Drain PlugPeterbilt 379 2003, Engine Oil Drain Plug by Dorman HD Solutions®. This replacement engine oil drain plug is a direct replacement for a damaged or worn original equipment drain plug, precisely matching the thread pitch to ensure a...Ideal replacement - this engine oil drain plug matches the fit and function of the original drain plugDurable construction - this replacement drain plug is made of corrosion-resistant materials for reliable service$8.25 - $18.34
- Dorman HD Solutions®Engine Oil PanPeterbilt 379 2003, Engine Oil Pan by Dorman HD Solutions®. 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$451.57 - $678.56
- Dorman HD Solutions®Engine Oil Pan GasketPeterbilt 379 14.9L 2003, Engine Oil Pan Gasket by Dorman HD Solutions®. This oil pan gasket is designed to match the fit and function of the original gasket on specified makes, years and models, and is engineered for reliable...Direct replacement - this direct replacement oil pan gasket is designed to match the fit and function of the original component on specified makes, years and modelsRestores functionality - reliable replacement to stop leaks after the original gasket has corroded or deteriorated$199.61
- Gates®Automotive XL™ V-BeltPeterbilt 379 with A/C 2003, Automotive XL™ V-Belt by Gates®. 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...Made with precision and quality in mindDesigned to meet your specific needs$15.40 - $19.89
- ACDelco®Professional™ Standard V-Ribbed Serpentine BeltPeterbilt 379 L6 10.3L / 12.0L 2003, Professional™ Standard V-Ribbed Serpentine Belt by ACDelco®. Length: 74.1". Made of EPDM rubber for long life and quiet, dependable performance, ACDelco Professional Automotive Belts are designed...Made with precision and quality in mindDesigned to meet your specific needs$98.31
- ACDelco®Professional™ V-BeltPeterbilt 379 2003, Professional™ V-Belt by ACDelco®. Designed utilizing the latest technology, this product by ACDelco 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$22.23 - $38.46
- ACDelco®Specialty™ Heavy Duty High Capacity V-BeltPeterbilt 379 with A/C 2003, Specialty™ Heavy Duty High Capacity V-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$19.09 - $37.05
- Continental® ContiTech™Conti-V Multirib™ Serpentine BeltPeterbilt 379 2003, Conti-V Multirib™ Serpentine Belt by Continental® ContiTech™. Designed to transmit torque and drive engine accessories, this serpentine belt provides quieter and cooler performance, greater durability, and...OE quality product for safe, reliable, and efficient performanceProvides quiet performance, even in wet conditions$20.33 - $52.89
- Continental® ContiTech™Serpentine BeltPeterbilt 379 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....Made with precision and quality in mindDesigned to meet your specific needs$25.50 - $34.66
- Continental® ContiTech™Serpentine BeltPeterbilt 379 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....Made with precision and quality in mindDesigned to meet your specific needs$14.70 - $21.63
- Dayco®Drive Rite™ V-Ribbed Serpentine BeltPeterbilt 379 2003, Drive Rite™ V-Ribbed Serpentine Belt by Dayco®. Specially constructed for vehicles that utilize the multiple-belt system, this product features raw-edge construction along with a patented top cogged design, which...More flexibility and increased airflow around the belt for prolonged service lifeRaw-edge sidewall construction along with a patented top cogged design for top performance$13.58 - $28.76
- Dayco®GOLD Label™ Poly Rib Heavy Duty BeltPeterbilt 379 2003, GOLD Label™ Poly Rib Heavy Duty Belt by Dayco®. The Dayco Gold Label™ serpentine belt is a diesel grade belt that features higher performance construction over conventional light duty belts in order to meet the...The belt’s heavy-duty construction provides additional integrity without sacrificing flexibilityEngineered with high-grade EPDM compounds$48.07 - $61.40