Semi Truck Engine
Browse by Vehicle
- Engine Assemblies
- Engine Blocks
- Camshafts
- Crankshafts
- Cylinder Heads
- Valve Covers
- Valves & Valvetrain Parts
- Pistons, Rings & Connecting Rods
- Timing Gears, Chains & Covers
- Motor Mounts
- Intercoolers
- Oil Coolers
- Oil Filters
- Engine Management Systems
- Engine Bearings
- Oil Pumps
- Engine Oil Pans, Drain Plugs & Dipsticks
- Engine Pulleys
- Engine Sensors, Relays, Switches
- Serpentine Belts & Auxiliary Drive Belts
- Engine Rebuild Kits
- Engine Oil Additives
- Motor Oils
- Balance Shafts
- Timing Belts
- Dorman® - OE Solutions™ Variable Timing Oil Control Valve (916-865)OE Solutions™ Variable Timing Oil Control Valve by Dorman®. This replacement engine variable valve timing solenoid is precision-engineered to match or exceed the stock VVT on specific vehicle years, makes and models. It includes...Ideal replacement - this VVT is professionally engineered to match the function and performance of the stock solenoid on specific vehicle applicationsComplete assembly - includes all original hardware and seals required for a quick and thorough replacement$30.85In Stock - Ships within 24 hrs
- Dorman® - OE Solutions™ Variable Valve Timing Solenoid (916-957)OE Solutions™ Variable Valve Timing Solenoid (916-957) by Dorman®. This replacement engine variable valve timing solenoid is precision-engineered to match or exceed the stock VVT on specific vehicle years, makes and models. It...Ideal replacement - this VVT is professionally engineered to match the function and performance of the stock solenoid on specific vehicle applicationsComplete assembly - includes all original hardware and seals required for a quick and thorough replacement$25.89In Stock - Ships within 24 hrs
- Dorman® - Oil Dipstick Tube (090-156.1)Oil Dipstick Tube (090-156.1) by Dorman®. Dorman’s Engine Oil Pump Drain Plug is conveniently designed as a direct replacement for stripped plugs. A proper fit is ensured, every time.Manufactured from high quality materials for a long service lifeEasy to install$2.88In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ ABS Wheel Speed Sensor Connector (645-134)TECHoice™ ABS Wheel Speed Sensor Connector (645-134) by Dorman®. Make better electrical repairs and accessory installations with this versatile and durable pigtail connector. It allows quick circuit disconnections for service, and is...Professional appearance - this electrical pigtail is designed for a clean, professional look when installedConvenient solution - this pigtail connector allows the circuit to be quickly disconnected for service or occasional use$15.83In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Automatic Belt Tensioner (419-006)TECHoice™ Automatic Belt Tensioner (419-006) 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 with quality...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$53.72In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Automatic Belt Tensioner (419-001)TECHoice™ Automatic Belt Tensioner (419-001) 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 with quality...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$75.84In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Automatic Belt Tensioner (419-109)TECHoice™ Automatic Belt Tensioner (419-109) 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 with quality...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$33.87In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Automatic Belt Tensioner (419-112)TECHoice™ Automatic Belt Tensioner (419-112) 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 with quality...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$37.87In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Automatic Belt Tensioner (419-011)TECHoice™ Automatic Belt Tensioner (419-011) 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 with quality...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$35.01In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Automatic Belt Tensioner (419-207)TECHoice™ Automatic Belt Tensioner (419-207) 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 with quality...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$38.82In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Automatic Belt Tensioner (419-100)TECHoice™ Automatic Belt Tensioner (419-100) 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 with quality...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$33.85In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Automatic Belt Tensioner (419-203)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 with quality components for...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$42.32In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Drive Belt Idler Pulley (419-712)TECHoice™ Drive Belt Idler Pulley (419-712) by Dorman®. This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and models,...Direct replacement - this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehiclesRestores performance - fixes a failed, squealing or groaning noise from a worn idler pulley$30.39In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Drive Belt Idler Pulley (419-685)TECHoice™ Drive Belt Idler Pulley by Dorman®. This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and models, properly...Direct replacement - this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehiclesRestores performance - fixes a failed, squealing or groaning noise from a worn idler pulley$47.81In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Drive Belt Tensioner Assembly (419-358)TECHoice™ Drive Belt Tensioner Assembly (419-358) 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 with quality...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$58.86In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Drive Belt Tensioner Assembly (419-391)TECHoice™ Drive Belt Tensioner Assembly (419-391) 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 with quality...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$91.86In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Drive Belt Tensioner Assembly (419-332)TECHoice™ Drive Belt Tensioner Assembly (419-332) 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 with quality...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$51.72In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Drive Belt Tensioner Assembly (419-039)TECHoice™ Drive Belt Tensioner Assembly (419-039) 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 with quality...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$99.99In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Driver Side Drive Belt Idler Pulley (419-471)TECHoice™ Driver Side Drive Belt Idler Pulley (419-471) by Dorman®. This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and...Direct replacement - this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehiclesRestores performance - fixes a failed, squealing or groaning noise from a worn idler pulley$18.93In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Driver Side Idler Pulley (419-623)TECHoice™ Driver Side Idler Pulley (419-623) by Dorman®. This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and models,...Direct replacement - this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehiclesRestores performance - fixes a failed, squealing or groaning noise from a worn idler pulley$26.94In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Idler Pulley (419-676)TECHoice™ Idler Pulley (419-676) by Dorman®. This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and models, properly...Direct replacement - this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehiclesRestores performance - fixes a failed, squealing or groaning noise from a worn idler pulley$24.93In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Idler Pulley (419-663)TECHoice™ Idler Pulley (419-663) by Dorman®. This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and models, properly...Direct replacement - this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehiclesRestores performance - fixes a failed, squealing or groaning noise from a worn idler pulley$20.92In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Idler Pulley (419-636)TECHoice™ Idler Pulley (419-636) by Dorman®. This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and models, properly...Direct replacement - this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehiclesRestores performance - fixes a failed, squealing or groaning noise from a worn idler pulley$35.83In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Idler Pulley (419-607)TECHoice™ Idler Pulley (419-607) by Dorman®. This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and models, properly...Direct replacement - this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehiclesRestores performance - fixes a failed, squealing or groaning noise from a worn idler pulley$20.54In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Idler Pulley (419-605)TECHoice™ Idler Pulley (419-605) by Dorman®. This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and models, properly...Direct replacement - this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehiclesRestores performance - fixes a failed, squealing or groaning noise from a worn idler pulley$23.28In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Idler Pulley (419-618)TECHoice™ Idler Pulley by Dorman®. This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and models, properly restoring...Direct replacement - this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehiclesRestores performance - fixes a failed, squealing or groaning noise from a worn idler pulley$26.89In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Idler Pulley (419-613)TECHoice™ Idler Pulley by Dorman®. This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and models, properly restoring...Direct replacement - this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehiclesRestores performance - fixes a failed, squealing or groaning noise from a worn idler pulley$10.13In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Idler Pulley (419-610)TECHoice™ Idler Pulley (419-610) by Dorman®. This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and models, properly...Direct replacement - this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehiclesRestores performance - fixes a failed, squealing or groaning noise from a worn idler pulley$9.59In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Regular Drive Belt Idler Pulley (419-629)TECHoice™ Regular Drive Belt Idler Pulley (419-629) by Dorman®. This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and...Direct replacement - this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehiclesRestores performance - fixes a failed, squealing or groaning noise from a worn idler pulley$20.49In Stock - Ships within 24 hrs
- Dorman® - TECHoice™ Regular Idler Pulley (419-615)TECHoice™ Regular Idler Pulley (419-615) by Dorman®. This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and models,...Direct replacement - this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehiclesRestores performance - fixes a failed, squealing or groaning noise from a worn idler pulley$12.78In Stock - Ships within 24 hrs
To travel long distances while pulling a trailer that can weigh close to 80,000 lbs, your big rig needs an extremely powerful and reliable engine. Since the reliability of any system is determined by its weakest link, each and every replacement engine part you purchase should be of the highest quality. To cover your needs for best-in-class semi truck replacement engine parts, we have gathered them on our digital shelves. Regardless of the product you are looking for, whether it is a set of piston rings or a replacement engine head, we have the right option at an affordable price.
The engine of your semi truck must produce enough horsepower and torque to be able to move huge loads across the country day in and day out. Each year, you may cover up to 50,000 miles in your big rig or even more. It means that sooner or later some components and systems of your engine will require maintenance or repair. On the digital shelves of our online store, you can find a huge assortment of parts, rebuild kits, and complete semi truck engine assemblies that you may need to keep your machine on the road hauling cargo and making you money.
Since semi trucks need a lot of torque on low RPMs to be able to pull heavy loads with decent fuel mileage, almost all big rigs today run on diesel. You can increase the output of your powerplant significantly by adding a turbocharger or supercharger. Such a unit pumps more air into the engine thus allowing for adding more fuel to the mixture. The difference is that a turbocharger is actuated by a turbine propelled by the exhaust gases flow, hence the name, while a supercharger uses the engine power receiving it from the crankshaft through the pulley system.
Intercoolers are designed for further improvement of turbocharged and supercharged engine efficiency by cooling down intake air thus increasing its charge density. Increased airflow improves combustion, increases horsepower and torque. In our store, you can find a huge assortment of aftermarket intercoolers and all required hoses, clamps, and couplings. We offer a wide variety of top-notch engine blocks, including bare blocks, expansion plug kits, engine block heaters, and other related parts. Browse our extensive catalogs of crankshafts, camshafts, valvetrain parts, and more to find all of the needed components, such as seals, gaskets, and bearings.
All semi trucks work much harder than other types of vehicles which means they are subject to accelerated wear and tear and must be maintained properly to serve you for many years to come. The problems with your semi truck’s engine can have severe consequences. Too much smoke coming out of the exhaust pipes, reduced oil pressure, or loss of power are all signs of engine malfunctions. It is essential to carry out regular engine compression tests and provide timely maintenance to avoid more expensive repairs. Don’t forget to change the oil regularly to prolong the service life of your engine and reduce the chance of failure.