Semi Truck Engine

Semi Truck Engine
  • ACDelco® - Professional™ Drive Belt Tensioner Assembly
    ACDelco® - Professional™ Drive Belt Tensioner Assembly (38106)
    0
    # mpn4480238992
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    $46.69
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  • ACDelco® - Professional™ Drive Belt Tensioner Assembly
    ACDelco® - Professional™ Drive Belt Tensioner Assembly (38329)
    0
    # mpn4480236827
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    $95.70
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  • ACDelco® - Professional™ Drive Belt Tensioner Assembly
    ACDelco® - Professional™ Drive Belt Tensioner Assembly (38258)
    0
    # mpn4480236755
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    $112.05
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  • ACDelco® - Professional™ Drive Belt Tensioner Assembly
    ACDelco® - Professional™ Drive Belt Tensioner Assembly (39083)
    0
    # mpn898145380
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    $62.40
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  • ACDelco® - Professional™ Drive Belt Tensioner Assembly
    ACDelco® - Professional™ Drive Belt Tensioner Assembly (38323)
    0
    # mpn898145298
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    $60.27
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  • ACDelco® - Professional™ Drive Belt Tensioner Assembly
    ACDelco® - Professional™ Drive Belt Tensioner Assembly (38270)
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    # mpn898145285
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  • ACDelco® - Professional™ Drive Belt Tensioner Assembly
    ACDelco® - Professional™ Drive Belt Tensioner Assembly (38191)
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    # mpn898145283
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    $66.00
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  • ACDelco® - Professional™ Drive Belt Tensioner Assembly
    ACDelco® - Professional™ Drive Belt Tensioner Assembly (38172)
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    # mpn898145280
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    $59.84
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Drive Belt Tensioner Assembly
    ACDelco® - Professional™ Drive Belt Tensioner Assembly (38274)
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    # mpn898145265
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    $34.58
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Drive Belt Tensioner Assembly
    ACDelco® - Professional™ Drive Belt Tensioner Assembly (38158)
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    # mpn898145252
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    $38.83
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Drive Belt Tensioner Assembly
    ACDelco® - Professional™ Drive Belt Tensioner Assembly (38159)
    0
    # mpn898145251
    Professional™ Drive Belt Tensioner Assembly (38159) 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...
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    $37.49
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Drive Belt Tensioner Assembly
    ACDelco® - Professional™ Drive Belt Tensioner Assembly (38123)
    0
    # mpn898145182
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    $62.50
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  • ACDelco® - Professional™ Drive Belt Tensioner Assembly
    ACDelco® - Professional™ Drive Belt Tensioner Assembly (38119)
    0
    # mpn898145180
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    $88.23
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  • ACDelco® - Professional™ Drive Belt Tensioner Assembly
    ACDelco® - Professional™ Drive Belt Tensioner Assembly (38140)
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    # mpn898145179
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    $72.27
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  • ACDelco® - Professional™ Drive Belt Tensioner Assembly
    ACDelco® - Professional™ Drive Belt Tensioner Assembly (38107)
    0
    # mpn898145175
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    $62.68
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Drive Belt Tensioner Assembly
    ACDelco® - Professional™ Drive Belt Tensioner Assembly (38103)
    0
    # mpn898145170
    Professional™ Drive Belt Tensioner Assembly (38103) 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...
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    $43.87
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  • ACDelco® - Professional™ Drive Belt Tensioner Assembly
    ACDelco® - Professional™ Drive Belt Tensioner Assembly (38153)
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    # mpn898145157
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    $87.79
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Drive Belt Tensioner Assembly
    ACDelco® - Professional™ Drive Belt Tensioner Assembly (38118)
    0
    # mpn898145155
    Professional™ Drive Belt Tensioner 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 lifestyle, it is...
    Right for your vehicle and lifestyleMade from high-quality materials for ultimate durability
    $64.78
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Engine Control Module
    ACDelco® - Professional™ Engine Control Module (218-12755)
    0
    # mpn4898440595
    Professional™ Engine Control Module (218-12755) by ACDelco®. An ACDelco Professional, premium aftermarket Remanufactured Engine Control Module is the ideal high quality replacement for your GM vehicle. It regulates various parts of...
    Vital to vehicle performance because they dictate the operation of its vital systemsDesigned to deliver trouble-free, consistent performance
    $240.37
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Engine Control Module
    ACDelco® - Professional™ Engine Control Module (218-12671)
    0
    # mpn4862757299
    Professional™ Engine Control Module (218-12671) by ACDelco®. An ACDelco Professional, premium aftermarket Remanufactured Engine Control Module is the ideal high quality replacement for your GM vehicle. It regulates various parts of...
    Vital to vehicle performance because they dictate the operation of its vital systemsDesigned to deliver trouble-free, consistent performance
    $89.27
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Engine Control Module
    ACDelco® - Professional™ Engine Control Module (218-13181)
    0
    # mpn4862757220
    Professional™ Engine Control Module (218-13181) by ACDelco®. An ACDelco Professional, premium aftermarket Remanufactured Engine Control Module is the ideal high quality replacement for your GM vehicle. It regulates various parts of...
    Vital to vehicle performance because they dictate the operation of its vital systemsDesigned to deliver trouble-free, consistent performance
    $270.93
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Engine Control Module
    ACDelco® - Professional™ Engine Control Module (218-12742)
    0
    # mpn4477770474
    Professional™ Engine Control Module (218-12742) by ACDelco®. An ACDelco Professional, premium aftermarket Remanufactured Engine Control Module is the ideal high quality replacement for your GM vehicle. It regulates various parts of...
    Vital to vehicle performance because they dictate the operation of its vital systemsDesigned to deliver trouble-free, consistent performance
    $110.88
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Engine Control Module
    ACDelco® - Professional™ Engine Control Module (218-11787)
    0
    # mpn905932326
    Professional™ Engine Control Module (218-11787) by ACDelco®. An ACDelco Professional, premium aftermarket Remanufactured Engine Control Module is the ideal high quality replacement for your GM vehicle. It regulates various parts of...
    Vital to vehicle performance because they dictate the operation of its vital systemsDesigned to deliver trouble-free, consistent performance
    $136.88
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Heavy Duty Belt Tensioner & Pulley Assembly
    ACDelco® - Professional™ Heavy Duty Belt Tensioner & Pulley Assembly (38517)
    0
    # mpn4862056264
    Professional™ Heavy Duty Belt Tensioner & Pulley Assembly (38517) 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
    $128.63
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Heavy Duty Belt Tensioner & Pulley Assembly
    ACDelco® - Professional™ Heavy Duty Belt Tensioner & Pulley Assembly (38505)
    0
    # mpn4862056253
    Professional™ Heavy Duty Belt Tensioner & Pulley Assembly (38505) 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
    $81.32
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Heavy Duty Belt Tensioner & Pulley Assembly
    ACDelco® - Professional™ Heavy Duty Belt Tensioner & Pulley Assembly (38509)
    0
    # mpn4480238689
    Professional™ Heavy Duty Belt Tensioner & Pulley Assembly (38509) 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
    $116.08
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Heavy Duty Belt Tensioner & Pulley Assembly
    ACDelco® - Professional™ Heavy Duty Belt Tensioner & Pulley Assembly (38550)
    0
    # mpn4480237158
    Professional™ Heavy Duty Belt Tensioner & Pulley Assembly (38550) 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
    $80.10
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Heavy Duty Belt Tensioner & Pulley Assembly
    ACDelco® - Professional™ Heavy Duty Belt Tensioner & Pulley Assembly (38634)
    0
    # mpn4480237102
    Professional™ Heavy Duty Belt Tensioner & Pulley Assembly (38634) 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
    $173.66
    In Stock - Ships in 24 to 48 hrs
  • ACDelco® - Professional™ Heavy Duty Belt Tensioner & Pulley Assembly
    ACDelco® - Professional™ Heavy Duty Belt Tensioner & Pulley Assembly (38556)
    0
    # mpn4443935600
    Professional™ Heavy Duty Belt Tensioner & Pulley Assembly (38556) 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
    $167.72
    In Stock - Ships within 24 hrs
  • ACDelco® - Professional™ Heavy Duty Belt Tensioner & Pulley Assembly
    ACDelco® - Professional™ Heavy Duty Belt Tensioner & Pulley Assembly (38510)
    0
    # mpn898145339
    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
    $139.78
    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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