Semi Truck Engine

Semi Truck Engine
  • ACDelco® - Professional™ Heavy Duty Belt Tensioner & Pulley Assembly
    ACDelco® - Professional™ Heavy Duty Belt Tensioner & Pulley Assembly (38528)
    0
    # mpn898145338
    Professional™ Heavy Duty Belt Tensioner & 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...
    Made with precision and quality in mindDesigned to meet your specific needs
    $142.66
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Heavy Duty Serpentine Belt Drive Component Kit
    ACDelco® - Professional™ Heavy Duty Serpentine Belt Drive Component Kit (ACK081264HD)
    0
    # mpn4482830025
    Professional™ Heavy Duty Serpentine Belt Drive Component Kit 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
    $226.36
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Heavy Duty Serpentine Belt Drive Component Kit
    ACDelco® - Professional™ Heavy Duty Serpentine Belt Drive Component Kit (ACK060795HD)
    0
    # mpn4430054231
    Professional™ Heavy Duty Serpentine Belt Drive Component Kit (ACK060795HD) 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
    $84.71
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (36770)
    1
    # mpn4645815079
    Professional™ Idler Pulley (36770) 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
    $38.18
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (36324)
    1
    # mpn4480238056
    Professional™ Idler Pulley (36324) 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
    $59.79
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (36225)
    1
    # mpn4480237107
    Professional™ Idler Pulley (36225) 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
    $45.41
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (36234)
    1
    # mpn4480237038
    Professional™ Idler Pulley (36234) 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
    $26.94
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (36096)
    1
    # mpn4480236753
    Professional™ Idler Pulley (36096) 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
    $66.79
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (36354)
    1
    # mpn4480236681
    Professional™ Idler Pulley (36354) 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
    $50.43
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (36091)
    1
    # mpn4480236659
    Professional™ Idler Pulley (36091) 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
    $49.89
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (38053)
    1
    # mpn4480236645
    Professional™ Idler Pulley (38053) 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
    $26.94
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (36177)
    1
    # mpn4477891397
    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 belt tensioner pulley, or...
    Bearing is designed for application specific speed and load requirementsProvides reliable operation under severe conditions for year round performance
    $52.04
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (36442)
    1
    # mpn4443950336
    Professional™ Idler Pulley (36442) 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
    $58.22
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (36169)
    1
    # mpn1264968434
    Professional™ Idler Pulley (36169) 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
    $23.55
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (38028)
    1
    # mpn898145120
    Professional™ Idler Pulley (38028) 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
    $22.59
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (38033)
    1
    # mpn898145118
    Professional™ Idler Pulley (38033) 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
    $40.82
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (38002)
    1
    # mpn898145112
    Professional™ Idler Pulley (38002) 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
    $23.05
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (38015)
    1
    # mpn898145108
    Professional™ Idler Pulley (38015) 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
    $20.38
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (38005)
    1
    # mpn898145103
    Professional™ Idler Pulley (38005) 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
    $27.46
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (38006)
    1
    # mpn898145100
    Professional™ Idler Pulley (38006) 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
    $23.91
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (38018)
    1
    # mpn898145096
    Professional™ Idler Pulley (38018) 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
    $16.30
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (36315)
    1
    # mpn898144547
    Professional™ Idler Pulley (36315) 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
    $107.14
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (36310)
    1
    # mpn898144540
    Professional™ Idler Pulley (36310) 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
    $27.60
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (36239)
    1
    # mpn898144533
    Professional™ Idler Pulley (36239) 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
    $17.45
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (36227)
    1
    # mpn898144524
    Professional™ Idler Pulley (36227) 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
    $32.93
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (36299)
    1
    # mpn898144523
    Professional™ Idler Pulley (36299) 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
    $26.00
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (36313)
    1
    # mpn898144517
    Professional™ Idler Pulley (36313) 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
    $17.70
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Idler Pulley
    ACDelco® - Professional™ Idler Pulley (36093)
    1
    # mpn898144372
    Professional™ Idler Pulley (36093) 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
    $51.53
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Oil Pressure Sender
    ACDelco® - Professional™ Oil Pressure Sender (D8034)
    0
    # mpn898152859
    Professional™ Oil Pressure Sender (D8034) by ACDelco®. With Gauge. 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:...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $33.37
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Oil Pressure Sender
    ACDelco® - Professional™ Oil Pressure Sender (D8050)
    0
    # mpn898152854
    Professional™ Oil Pressure Sender (D8050) by ACDelco®. With Light. 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:...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $10.97
    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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