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
- ACDelco® - Genuine GM Parts™ Engine Control ModuleGenuine GM Parts™ Engine Control Module 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. It will meet...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$211.90 - $355.09Availability Varies - Depends on Product Options
- ACDelco® - Professional™ Camshaft Position SensorProfessional™ Camshaft Position Sensor by ACDelco®. Designed utilizing the latest technology, this Professional™ Camshaft Position Sensor by ACDelco features premium quality and will perform better than advertised. Perfect for...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$37.20 - $64.30Availability Varies - Depends on Product Options
- ACDelco® - Professional™ Crankshaft Position SensorProfessional™ 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 vehicle and lifestyle, it is...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$65.24 - $76.38Availability Varies - Depends on Product Options
- ACDelco® - Professional™ Drive Belt TensionerProfessional™ Drive Belt Tensioner 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...Right for your vehicle and lifestyleMade from high-quality materials for ultimate durability$34.58 - $162.34Availability Varies - Depends on Product Options
- ACDelco® - Professional™ Engine Oil Pressure SensorProfessional™ Engine Oil Pressure Sensor by ACDelco®. ACDelco Professional Engine Oil Pressure Sender With Gauge is an ideal high quality aftermarket replacement component for one or more of the following vehicle systems: cooling,...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$6.64 - $33.37Availability Varies - Depends on Product Options
- ACDelco® - Professional™ Heavy Duty Belt Tensioner and Pulley AssemblyProfessional™ Heavy Duty Belt Tensioner and Pulley Assembly 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...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$80.10 - $295.16Availability Varies - Depends on Product Options
- ACDelco® - Professional™ Idler PulleyProfessional™ 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 tensioner pulley, or...Bearing is designed for application specific speed and load requirementsProvides reliable operation under severe conditions for year round performance$15.13 - $117.40Availability Varies - Depends on Product Options
- Dayco® - Drive Belt Idler PulleyDrive Belt Idler Pulley by Dayco®. Dayco's reputation for top performance idler and tensioner pulleys is a result of advanced automotive technologies employed in materials research, design engineering, and manufacturing of our pulleys.OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$16.80 - $158.55Availability Varies - Depends on Product Options
- Dayco® - Drive Belt Tensioner AssemblyDrive 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 drives, the Dayco Automatic...Heavy duty cast aluminum spring case that resists cracking and fatigueSteel pivot tube which provides additional strength for critical torque requirements$41.18 - $292.13Availability Varies - Depends on Product Options
- Dorman® - Autograde™ Oil Drain PlugAutograde™ 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 reliable product can help you get...Oil Drain Plugs are designed and constructed to strict engineering quality standardsThe finest quality at a great price$1.51 - $57.08Availability Varies - Depends on Product Options
- Dorman® - HELP™ Oil DipstickHELP™ 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 for accuracy.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$16.71 - $40.38Availability Varies - Depends on Product Options
- Dorman® - HELP™ Oil Drain PlugHELP™ 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 meet your needs and deliver...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$1.50 - $4.09In Stock - Ships within 24 hrs
- Dorman® - OE Solutions™ Camshaft Position SensorOE Solutions™ Camshaft Position Sensor by Dorman®. This direct replacement camshaft position sensor matches the fit and performance of a failed original equipment sensor to restore proper engine starting and running, made of quality...Direct replacement - this camshaft position sensor matches the fit and performance of the original equipment sensorDurable construction - this part is manufactured to exacting standards to ensure reliable performance and durability$13.91 - $45.40Availability Varies - Depends on Product Options
- Dorman® - OE Solutions™ Crankshaft Position SensorOE 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 extensive testing to...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$21.91 - $54.70Availability Varies - Depends on Product Options
- Dorman® - OE Solutions™ Oil PanOE Solutions™ 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$42.94 - $308.61Availability Varies - Depends on Product Options
- Dorman® - OE Solutions™ Oil Pressure SensorOE Solutions™ Oil Pressure Sensor by Dorman®. This replacement oil pressure sensor is a direct replacement for the original sensor on specified applications. It is ruggedly designed and built to withstand required operating pressures...Ideal replacement - this oil pressure sensor directly replaces the original sensor on specified vehicles and applicationsDurable construction - this sensor is specifically designed to withstand pressure and temperature extremes for reliable performance and accurate measurement$23.87 - $32.54Availability Varies - Depends on Product Options
- Dorman® - OE Solutions™ Timing CoverOE Solutions™ Timing 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 extensive testing to ensure adherence to precise...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$28.88 - $116.91Availability Varies - Depends on Product Options
- Dorman® - OE Solutions™ Valve CoverOE Solutions™ Valve Cover by Dorman®. Save time and money with the Dorman Engine Valve Cover. The engine valve cover is designed to protect the cylinder head, and its components, along with sealing oil flow. Their direct replacement...Direct replacement - this valve cover matches the original equipment part for fit and functionDurable construction - this valve cover is made of quality materials to withstand extreme temperatures to resist leaking$57.86 - $167.72Availability Varies - Depends on Product Options
- Dorman® - OE Solutions™ Variable Timing SolenoidOE Solutions™ Variable Timing Solenoid 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 original...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$25.89 - $35.86Availability Varies - Depends on Product Options
- Dorman® - TECHoice™ Drive Belt Idler PulleyTECHoice™ 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$14.93 - $47.81Availability Varies - Depends on Product Options
- Dorman® - TECHoice™ Drive Belt Tensioner AssemblyTECHoice™ 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 with quality components...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$33.85 - $99.99Availability Varies - Depends on Product Options
- PAI® - Accessory DriveAccessory Drive 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. Manufactured from...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$488.59 - $1,189.68Availability Varies - Depends on Product Options
- PAI® - Camshaft BearingCamshaft Bearing by PAI®. 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 provide a perfect fit for a...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$12.26 - $260.36Availability Varies - Depends on Product Options
- PAI® - Camshaft Position SensorCamshaft Position Sensor by PAI®. Designed utilizing the latest technology, this product by PAI features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$38.27 - $72.79In Stock - Ships in 24 to 48 hrs
- PAI® - Compressor Mounting GasketCompressor Mounting 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 industry-leading...2 Years WarrantyPerfect blend of leading innovations and superior workmanship$7.15 - $20.87Availability Varies - Depends on Product Options
- PAI® - Connecting Rod BearingConnecting Rod Bearing 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. Manufactured from...Standard3 Years Warranty$13.44 - $28.14Availability Varies - Depends on Product Options
- PAI® - Crankshaft Main BearingCrankshaft Main Bearing 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 industry-leading...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$218.59 - $529.40Availability Varies - Depends on Product Options
- PAI® - Crankshaft Position SensorCrankshaft Position Sensor 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. Manufactured...2 Years WarrantyPerfect blend of leading innovations and superior workmanship$29.43 - $89.31Availability Varies - Depends on Product Options
- PAI® - Crankshaft SealCrankshaft 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 industry-leading materials...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$9.85 - $295.84Availability Varies - Depends on Product Options
- PAI® - Cylinder Head GasketCylinder Head 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. Manufactured from...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$38.21 - $1,093.51Availability Varies - Depends on Product Options
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.