Semi Truck Engine

Semi Truck Engine
  • ACDelco® - Professional™ Oil Pressure Switch
    ACDelco® - Professional™ Oil Pressure Switch (E1805A)
    0
    # mpn898153002
    Professional™ Oil Pressure Switch (E1805A) 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
    $18.22
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Passenger Side Idler Pulley
    ACDelco® - Professional™ Passenger Side Idler Pulley (38001)
    1
    # mpn898145111
    Professional™ Passenger Side Idler Pulley (38001) 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...
    Bearing is designed for application specific speed and load requirementsProvides reliable operation under severe conditions for year round performance
    $20.51
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Serpentine Belt Drive Component Kit
    ACDelco® - Professional™ Serpentine Belt Drive Component Kit (ACK060966)
    0
    # mpn4900612787
    Professional™ Serpentine Belt Drive Component Kit (ACK060966) by ACDelco®. Made of EPDM rubber for long life and quiet, dependable performance, ACDelco Professional Automotive Belts are designed to meet or exceed OEM performance...
    Made with precision and quality in mindDesigned to meet your specific needs
    $81.99
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Serpentine Drive Belt Tensioner Kit
    ACDelco® - Professional™ Serpentine Drive Belt Tensioner Kit (ACK060960)
    0
    # mpn4430042312
    Professional™ Serpentine Drive Belt Tensioner Kit (ACK060960) by ACDelco®. Made of EPDM rubber for long life and quiet, dependable performance, ACDelco Professional Automotive Belts are designed to meet or exceed OEM performance...
    Made with precision and quality in mindDesigned to meet your specific needs
    $72.05
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Upper Idler Pulley
    ACDelco® - Professional™ Upper Idler Pulley (36492)
    1
    # mpn4480238073
    Professional™ Upper 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...
    Bearing is designed for application specific speed and load requirementsProvides reliable operation under severe conditions for year round performance
    $41.83
    In Stock - Ships within 24 hrs
  • Dayco® - 12 Rib Design Drive Belt Tensioner Assembly
    Dayco® - 12 Rib Design Drive Belt Tensioner Assembly (89935)
    0
    # mpn4629082548
    12 Rib Design Drive Belt Tensioner Assembly (89935) 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,...
    Heavy duty cast aluminum spring case that resists cracking and fatigueSteel pivot tube which provides additional strength for critical torque requirements
    $177.90
    In Stock - Ships within 24 hrs
  • Dayco® - Drive Belt Tensioner Assembly
    Dayco® - Drive Belt Tensioner Assembly (89947)
    0
    # mpn4888938794
    Drive Belt Tensioner Assembly (89947) 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...
    Heavy duty cast aluminum spring case that resists cracking and fatigueSteel pivot tube which provides additional strength for critical torque requirements
    $238.06
    In Stock - Ships within 24 hrs
  • Dayco® - Drive Belt Tensioner Assembly
    Dayco® - Drive Belt Tensioner Assembly (89930)
    0
    # mpn4496906376
    Drive Belt Tensioner Assembly (89930) 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...
    Heavy duty cast aluminum spring case that resists cracking and fatigueSteel pivot tube which provides additional strength for critical torque requirements
    $105.63
    In Stock - Ships within 24 hrs
  • Dayco® - Drive Belt Tensioner Assembly
    Dayco® - Drive Belt Tensioner Assembly (89658)
    0
    # mpn4485306531
    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 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
    $102.65
    In Stock - Ships within 24 hrs
  • Dayco® - Engine Timing Chain Kit
    Dayco® - Engine Timing Chain Kit (KTC1354)
    0
    # mpn4981117454
    Engine Timing Chain Kit (KTC1354) by Dayco®. Designed to maintain constant belt tension, this tensioner provides less variations in tension to prevent premature accessory bearing failure due to high belt tension, when a new belt is...
    Maintains constant tension on serpentine belt drivesEliminates belt noise and reduces slippage
    $49.27
    In Stock - Ships within 24 hrs
  • Dayco® - Engine Timing Chain Kit
    Dayco® - Engine Timing Chain Kit (KTC1344)
    0
    # mpn4981117337
    Engine Timing Chain Kit (KTC1344) by Dayco®. Designed to maintain constant belt tension, this tensioner provides less variations in tension to prevent premature accessory bearing failure due to high belt tension, when a new belt is...
    Maintains constant tension on serpentine belt drivesEliminates belt noise and reduces slippage
    $254.15
    In Stock - Ships within 24 hrs
  • Dayco® - Engine Timing Chain Kit
    Dayco® - Engine Timing Chain Kit (KTC1391)
    0
    # mpn4981117316
    Engine Timing Chain Kit (KTC1391) by Dayco®. Designed to maintain constant belt tension, this tensioner provides less variations in tension to prevent premature accessory bearing failure due to high belt tension, when a new belt is...
    Maintains constant tension on serpentine belt drivesEliminates belt noise and reduces slippage
    $860.17
    In Stock - Ships within 24 hrs
  • Dayco® - Engine Timing Chain Kit
    Dayco® - Engine Timing Chain Kit (KTC1343)
    0
    # mpn4981117244
    Engine Timing Chain Kit (KTC1343) by Dayco®. Designed to maintain constant belt tension, this tensioner provides less variations in tension to prevent premature accessory bearing failure due to high belt tension, when a new belt is...
    Maintains constant tension on serpentine belt drivesEliminates belt noise and reduces slippage
    $78.50
    In Stock - Ships within 24 hrs
  • Dayco® - Engine Timing Chain Kit
    Dayco® - Engine Timing Chain Kit (KTC1104)
    0
    # mpn4981117216
    Engine Timing Chain Kit (KTC1104) by Dayco®. Designed to maintain constant belt tension, this tensioner provides less variations in tension to prevent premature accessory bearing failure due to high belt tension, when a new belt is...
    Maintains constant tension on serpentine belt drivesEliminates belt noise and reduces slippage
    $141.14
    In Stock - Ships within 24 hrs
  • Dayco® - Engine Timing Chain Kit
    Dayco® - Engine Timing Chain Kit (KTC1401)
    0
    # mpn4981117209
    Engine Timing Chain Kit (KTC1401) by Dayco®. Designed to maintain constant belt tension, this tensioner provides less variations in tension to prevent premature accessory bearing failure due to high belt tension, when a new belt is...
    Maintains constant tension on serpentine belt drivesEliminates belt noise and reduces slippage
    $106.27
    In Stock - Ships within 24 hrs
  • Dayco® - Engine Timing Chain Kit
    Dayco® - Engine Timing Chain Kit (KTC1341)
    0
    # mpn4981117208
    Engine Timing Chain Kit (KTC1341) by Dayco®. Designed to maintain constant belt tension, this tensioner provides less variations in tension to prevent premature accessory bearing failure due to high belt tension, when a new belt is...
    Maintains constant tension on serpentine belt drivesEliminates belt noise and reduces slippage
    $282.17
    In Stock - Ships within 24 hrs
  • Dayco® - Engine Timing Chain Kit
    Dayco® - Engine Timing Chain Kit (KTC1406)
    0
    # mpn4981117202
    Engine Timing Chain Kit (KTC1406) by Dayco®. Designed to maintain constant belt tension, this tensioner provides less variations in tension to prevent premature accessory bearing failure due to high belt tension, when a new belt is...
    Maintains constant tension on serpentine belt drivesEliminates belt noise and reduces slippage
    $75.13
    In Stock - Ships within 24 hrs
  • Dayco® - Engine Timing Chain Kit
    Dayco® - Engine Timing Chain Kit (KTC1355)
    0
    # mpn4981117181
    Engine Timing Chain Kit (KTC1355) by Dayco®. Designed to maintain constant belt tension, this tensioner provides less variations in tension to prevent premature accessory bearing failure due to high belt tension, when a new belt is...
    Maintains constant tension on serpentine belt drivesEliminates belt noise and reduces slippage
    $32.85
    In Stock - Ships within 24 hrs
  • Dayco® - Engine Timing Chain Kit
    Dayco® - Engine Timing Chain Kit (KTC1360)
    0
    # mpn4981117176
    Engine Timing Chain Kit (KTC1360) by Dayco®. Designed to maintain constant belt tension, this tensioner provides less variations in tension to prevent premature accessory bearing failure due to high belt tension, when a new belt is...
    Maintains constant tension on serpentine belt drivesEliminates belt noise and reduces slippage
    $244.80
    In Stock - Ships within 24 hrs
  • Dayco® - Engine Timing Chain Kit
    Dayco® - Engine Timing Chain Kit (KTC1333)
    0
    # mpn4981117166
    Engine Timing Chain Kit (KTC1333) by Dayco®. Designed to maintain constant belt tension, this tensioner provides less variations in tension to prevent premature accessory bearing failure due to high belt tension, when a new belt is...
    Maintains constant tension on serpentine belt drivesEliminates belt noise and reduces slippage
    $88.65
    In Stock - Ships within 24 hrs
  • Dayco® - Engine Timing Chain Kit
    Dayco® - Engine Timing Chain Kit (KTC1338)
    0
    # mpn4981117157
    Engine Timing Chain Kit (KTC1338) by Dayco®. Designed to maintain constant belt tension, this tensioner provides less variations in tension to prevent premature accessory bearing failure due to high belt tension, when a new belt is...
    Maintains constant tension on serpentine belt drivesEliminates belt noise and reduces slippage
    $102.52
    In Stock - Ships within 24 hrs
  • Dayco® - Engine Timing Chain Kit
    Dayco® - Engine Timing Chain Kit (KTC1339)
    0
    # mpn4981117124
    Engine Timing Chain Kit (KTC1339) by Dayco®. Designed to maintain constant belt tension, this tensioner provides less variations in tension to prevent premature accessory bearing failure due to high belt tension, when a new belt is...
    Maintains constant tension on serpentine belt drivesEliminates belt noise and reduces slippage
    $202.95
    In Stock - Ships within 24 hrs
  • Dayco® - Engine Timing Chain Kit
    Dayco® - Engine Timing Chain Kit (KTC1383)
    0
    # mpn4981117122
    Engine Timing Chain Kit (KTC1383) by Dayco®. Designed to maintain constant belt tension, this tensioner provides less variations in tension to prevent premature accessory bearing failure due to high belt tension, when a new belt is...
    Maintains constant tension on serpentine belt drivesEliminates belt noise and reduces slippage
    $313.85
    In Stock - Ships within 24 hrs
  • Dayco® - Engine Timing Chain Kit
    Dayco® - Engine Timing Chain Kit (KTC1399)
    0
    # mpn4981117115
    Engine Timing Chain Kit (KTC1399) by Dayco®. Designed to maintain constant belt tension, this tensioner provides less variations in tension to prevent premature accessory bearing failure due to high belt tension, when a new belt is...
    Maintains constant tension on serpentine belt drivesEliminates belt noise and reduces slippage
    $222.69
    In Stock - Ships within 24 hrs
  • Dayco® - Engine Timing Chain Kit
    Dayco® - Engine Timing Chain Kit (KTC1392)
    0
    # mpn4981117111
    Engine Timing Chain Kit (KTC1392) by Dayco®. Designed to maintain constant belt tension, this tensioner provides less variations in tension to prevent premature accessory bearing failure due to high belt tension, when a new belt is...
    Maintains constant tension on serpentine belt drivesEliminates belt noise and reduces slippage
    $53.31
    In Stock - Ships within 24 hrs
  • Dayco® - Engine Timing Chain Kit
    Dayco® - Engine Timing Chain Kit (KTC1358)
    0
    # mpn4981117107
    Engine Timing Chain Kit (KTC1358) by Dayco®. Designed to maintain constant belt tension, this tensioner provides less variations in tension to prevent premature accessory bearing failure due to high belt tension, when a new belt is...
    Maintains constant tension on serpentine belt drivesEliminates belt noise and reduces slippage
    $58.05
    In Stock - Ships within 24 hrs
  • Dayco® - Engine Timing Chain Kit
    Dayco® - Engine Timing Chain Kit (KTC1412)
    0
    # mpn4981117103
    Engine Timing Chain Kit (KTC1412) by Dayco®. Designed to maintain constant belt tension, this tensioner provides less variations in tension to prevent premature accessory bearing failure due to high belt tension, when a new belt is...
    Maintains constant tension on serpentine belt drivesEliminates belt noise and reduces slippage
    $424.48
    In Stock - Ships within 24 hrs
  • Dayco® - Engine Timing Chain Kit
    Dayco® - Engine Timing Chain Kit (KTC1448)
    0
    # mpn4981117102
    Engine Timing Chain Kit (KTC1448) by Dayco®. Designed to maintain constant belt tension, this tensioner provides less variations in tension to prevent premature accessory bearing failure due to high belt tension, when a new belt is...
    Maintains constant tension on serpentine belt drivesEliminates belt noise and reduces slippage
    $32.71
    In Stock - Ships within 24 hrs
  • Dayco® - Engine Timing Chain Kit
    Dayco® - Engine Timing Chain Kit (KTC1372)
    0
    # mpn4981117101
    Engine Timing Chain Kit (KTC1372) by Dayco®. Designed to maintain constant belt tension, this tensioner provides less variations in tension to prevent premature accessory bearing failure due to high belt tension, when a new belt is...
    Maintains constant tension on serpentine belt drivesEliminates belt noise and reduces slippage
    $346.17
    In Stock - Ships within 24 hrs
  • Dayco® - Engine Timing Chain Kit
    Dayco® - Engine Timing Chain Kit (KTC1387)
    0
    # mpn4981117079
    Engine Timing Chain Kit (KTC1387) by Dayco®. Designed to maintain constant belt tension, this tensioner provides less variations in tension to prevent premature accessory bearing failure due to high belt tension, when a new belt is...
    Maintains constant tension on serpentine belt drivesEliminates belt noise and reduces slippage
    $367.20
    In 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.

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