2003 Freightliner MT Engine
Select Your Submodel
- Engine Blocks
- Valves & Valvetrain Parts
- Pistons, Rings & Connecting Rods
- Oil Filters
- Serpentine Belts & Auxiliary Drive Belts
- Timing Gears, Chains & Covers
- Oil Pans, Drain Plugs & Dipsticks
- Cylinder Heads
- Engine Pulleys
- Engine Sensors, Relays, Switches
- Oil Pumps
- Oil Coolers
- Crankshafts
- Engine Rebuild Kits
- Intercoolers
- Throttle Bodies
- Carburetors
- Motor Oils
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Baldwin Filters®Engine Oil FilterFreightliner MT 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....Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$9.96 - $49.80 - WIX®Engine Oil FilterFreightliner MT 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...You use conventional, synthetic or synthetic-blended motor oilsYour drives are stop-and-go, either in the city or in heavy traffic$12.26 - $26.42
- WIX®Engine Oil FilterFreightliner MT 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...You use conventional, synthetic or synthetic-blended motor oilsYour drives are stop-and-go, either in the city or in heavy traffic$12.26 - $26.42
- Hastings®Engine Oil FilterFreightliner MT 2003, Engine Oil Filter by Hastings®. Hastings Premium Filters has been a manufacturer of mobile filtration products for over sixty years. Hastings manufactures and distributes automotive and heavy-duty filters for a...Expertly crafted from premium materialsDesigned to match rigorous quality standards$7.79 - $36.14
- Motorcraft®Engine Oil FilterFreightliner MT 4.3L 2003, Engine Oil Filter by Motorcraft®. 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....Tested and retested under extreme conditions, Motorcraft filters are also the only filters recommended for Ford, Lincoln and Mercury vehiclesHelps protect against engine wear by screening out abrasives, such as carbon, sand, dust and bits of metal$6.13
- PAI®Piston RingFreightliner MT35 2003, Piston Ring 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$7.35
- Gates®DriveAlign™ Drive Belt Idler PulleyFreightliner MT 5.9L 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...High quality construction provides high durability for long lifeBearing meets or exceeds OE and is designed for application specific speed and load requirements$35.75
- Continental® ContiTech™Elite™ Drive Belt Idler AssemblyFreightliner MT 3.9L / 5.9L 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...Original equipment equivalentFactory-like fit and dependability$47.06
- PAI®Crankshaft SealFreightliner MT 2003, Crankshaft Seal 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$25.40 - $54.02
- PAI®Crankshaft SealFreightliner MT 2003, Crankshaft Seal 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$25.40 - $54.02
- Gates®FleetRunner™ Heavy Duty V-BeltFreightliner MT 5.9L with A/C 2003, FleetRunner™ Heavy Duty V-Belt by Gates®. Length: 43.05". Gates is the largest global manufacturer of OE timing belts. This means Gates is able to cover the Aftermarket with timing belts that are...The finest quality at a great priceGates carries everything needed to complete the job$24.16
- Gates®Micro-V™ V-Ribbed BeltFreightliner MT 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$27.23 - $43.85
- ACDelco®Specialty™ Heavy Duty V-Ribbed Serpentine BeltFreightliner MT 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$32.27 - $65.91
- Dayco®Drive Belt Tensioner AssemblyFreightliner MT 4.3L 2003, Drive 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 on serpentine belt...Heavy duty cast aluminum spring case that resists cracking and fatigueSteel pivot tube which provides additional strength for critical torque requirements$118.41
- Dayco®No Slack™ Heavy Duty Automatic Belt Tensioner AssemblyFreightliner MT 5.9L 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...Heavy duty cast aluminum spring case that resists cracking and fatigueSteel pivot tube which provides additional strength for critical torque requirements$129.56
- Gates®Automotive XL™ V-BeltFreightliner MT 5.9L with A/C 2003, Automotive XL™ V-Belt by Gates®. Length: 43". This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with...Made with precision and quality in mindDesigned to meet your specific needs$18.95
- Continental® ContiTech™Conti-V Multirib™ Serpentine BeltFreightliner MT 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$37.69 - $56.41
- Continental® ContiTech™Serpentine BeltFreightliner MT 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$30.30 - $32.09
- Continental® ContiTech™V-Groove Accessory Drive BeltFreightliner MT 3.9L / 5.9L 2003, V-Groove Accessory Drive Belt by Continental® ContiTech™. This belt is designed with teeth molded directly into its surface to avoid slipping for reliable and efficient performance. Manufactured using...OE quality product for safe, reliable, and efficient performanceManufactured using the latest material technology$14.65
- ACDelco®Professional™ Standard High Capacity V-BeltFreightliner MT 5.9L with A/C 2003, Professional™ Standard High Capacity V-Belt by ACDelco®. Length: 43". Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$27.44
- ACDelco®Professional™ Standard V-Ribbed Serpentine BeltFreightliner MT 2003, Professional™ Standard V-Ribbed Serpentine Belt by ACDelco®. Made of EPDM rubber for long life and quiet, dependable performance, ACDelco Professional Automotive Belts are designed to meet or exceed OEM...Made with precision and quality in mindDesigned to meet your specific needs$27.84 - $62.43
- Dayco®GOLD Label™ Poly Rib Heavy Duty BeltFreightliner MT 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$43.31 - $52.31
- Dayco®Top Cog™ GOLD Label™ V-BeltFreightliner MT 5.9L with A/C 2003, Top Cog™ GOLD Label™ V-Belt by Dayco®. Length: 43". Built with cogs in its top, the belt provides additional flexibility around small pulleys while the increased surface area results in a cooler...Constructed to deliver extended life in demanding diesel applicationsCogs in the top of the belt for increased flexibility around small pulleys$21.62
- Goodyear Belts®Serpentine Multi V-BeltFreightliner MT 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$35.36 - $47.35
- Gates®Green Stripe™ DriveAlign™ Heavy Duty Drive Belt Tensioner AssemblyFreightliner MT 2003, Green Stripe™ DriveAlign™ Heavy Duty Drive Belt Tensioner Assembly by Gates®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of...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$67.80 - $101.33
- Continental® ContiTech™Elite™ Drive Belt Tensioner AssemblyFreightliner MT 2003, Elite™ Drive Belt Tensioner Assembly by Continental® ContiTech™. This belt tensioner assembly is constructed to meet OE requirements for fit, form, and function. It provides smooth, noiseless, and...Constructed to match OE form, fit, and functionMaintains its correct alignment to the belt and correct accessory belt tension$105.77 - $119.21
- ACDelco®Professional™ Idler PulleyFreightliner MT 5.9L 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...Bearing is designed for application specific speed and load requirementsProvides reliable operation under severe conditions for year round performance$68.02
- Dayco®No Slack™ Heavy Duty Idler/Tensioner PulleyFreightliner MT 5.9L 2003, No Slack™ Heavy Duty Idler/Tensioner Pulley by Dayco®. Dayco's reputation for top performance idler and tensioner pulleys is a result of advanced automotive technologies employed in materials research,...Made with precision and quality in mindDesigned to meet your specific needs$46.39
- Dorman®OE Solutions™ Crankshaft Position SensorFreightliner MT 2003, OE Solutions™ Crankshaft Position Sensor by Dorman®. This direct replacement crankshaft position sensor matches the fit and function of the original equipment sensor for a reliable repair. This part has undergone...Direct replacement - this crankshaft position sensor is a precise match for the fit and function of the original equipment sensorReady to install - matches the factory-style connector for plug-and-play installation$36.95
- PAI®Oil Drain Plug SealFreightliner MT 2003, Oil Drain Plug Seal 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$5.63
