Collection: GM ENGINE & DRIVETRAIN PARTS | GM Service Guy

Explore Reliable GM Engine Solutions and Drivetrain Components

Power your GM vehicle's performance with our comprehensive selection of engine and drivetrain parts. From gaskets, timing chains, and camshaft components to pistons, crankshafts, and valve train parts, plus CV axles, driveshafts, differentials, and transmission components — we carry everything needed to keep your Chevrolet, GMC, Buick, Cadillac, or Pontiac running strong.

Our GM engine and drivetrain parts are sourced to meet OEM specifications, delivering a precise fit and long-lasting durability under the most demanding conditions. Whether you're rebuilding a high-mileage engine, replacing a worn CV axle, or restoring drivetrain integrity after a failure, we have the right parts at competitive prices.

Don't let engine or drivetrain issues sideline your vehicle. Browse our full catalog of GM engine and drivetrain components and find exactly what your year, make, and model requires. Fast shipping and quality-assured parts get your build back on track.

High-Quality GM Engine Components

When it comes to maintaining or upgrading your GM vehicle, using genuine GM engine parts is essential for optimal performance. GM engine components are designed to meet rigorous standards, ensuring durability and reliability. Whether you need replacement parts for repairs or are looking to boost your engine’s efficiency, these parts deliver consistent power and longevity. At GM Service Guy, we provide a wide selection of factory-tested GM engine parts that fit perfectly and function seamlessly in your vehicle.

Durable Drivetrain Parts for Smooth Operation

The drivetrain is crucial to your GM vehicle’s performance, transferring power from the engine to the wheels efficiently. By choosing high-quality GM drivetrain parts, you guarantee smoother rides and improved handling. GM Service Guy offers a range of drivetrain components, including transmissions, differentials, and axles, designed specifically to withstand wear and tear. Our parts ensure your vehicle operates reliably under various driving conditions while maintaining peak performance.

Expert Support and Genuine Parts for GM Vehicles

At GM Service Guy, we understand the importance of sourcing genuine parts for your GM engine and drivetrain needs. Our team is committed to helping you find the exact components that match your vehicle’s model and specifications. Backed by expert knowledge and a wide parts inventory, we provide trusted solutions that enhance your vehicle’s lifespan and performance. Choose GM Service Guy for parts that maintain your GM vehicle’s excellence on every drive.

 

306 products

306 products

  • Featured
  • Most relevant
  • Best selling
  • Alphabetically, A-Z
  • Alphabetically, Z-A
  • Price, low to high
  • Price, high to low
  • Date, old to new
  • Date, new to old
  • Crankshaft Main Bearing Set 2014-2021 Silverado & GMC Sierra, 2018-2022 GMC Savana 4.3L V6 (Oversizes Available)

    Regular price $81.99 USD
    Regular price $129.14 USD Sale price $81.99 USD
    Partsology crankshaft main bearing set for 2014-2021 Silverado, GMC Sierra, and 2018-2022 GMC Savana 4.3L V6 engine.
    Sale
  • Crankshaft Main Bearing Set 2011-2021 Buick,Cadillac,Chevrolet 1.4L (Oversizes Available)

    Regular price $79.99 USD
    Regular price $126.16 USD Sale price $79.99 USD
    Partsology crankshaft main bearing set for 2011-2021 Buick, Cadillac, Chevrolet 1.4L engine, shown in a detailed view.
    Sale
  • Timing Set 2014-2020 Cadillac,Chevrolet,GMC 5.3L-6.2L

    Regular price $76.99 USD
    Regular price $121.31 USD Sale price $76.99 USD
    Partsology timing set for 2014-2020 Cadillac, Chevrolet, GMC 5.3L-6.2L engines, includes essential components for engine timing.
    Sale
  • Exhaust / Intake Valve Kit 1992-1994 Buick,Oldsmobile,Pontiac 2.3L

    Regular price $75.99 USD
    Regular price $119.85 USD Sale price $75.99 USD
    Partsology exhaust and intake valve kit for 1992-1994 Buick, Oldsmobile, Pontiac 2.3L engines, fits Buick Envista, Encore, Envision, Enclave.
    Sale
  • Valve Lifter Kit 1963-1989 Buick,Chevrolet,GMC,Oldsmobile,Pontiac 3.8L-4.8L

    Regular price $73.99 USD
    Regular price $115.94 USD Sale price $73.99 USD
    Partsology valve lifter kit for 1963-1989 Buick, Chevrolet, GMC, Oldsmobile, Pontiac 3.8L-4.8L V6 engine, includes engine components.
    Sale
  • 8Pcs Fuel Injectors Nozzle 12613412 for Chevrolet Avalanche Express Silverado Tahoe Suburban GMC Savana Sierra Yukon

    Regular price $73.80 USD
    Regular price $0.00 USD Sale price $73.80 USD
    Set of 8 GM fuel injectors nozzles for Chevrolet Avalanche, Silverado, Tahoe, GMC Sierra, Yukon, and Savana vehicles.
  • Timing Chain Set 1998-2000 Chevrolet, GMC 7.4L V8

    Regular price $72.99 USD
    Regular price $114.99 USD Sale price $72.99 USD
    Timing chain set for 1998-2000 Chevrolet and GMC 7.4L V8 engine from Partsology, featuring metal chains and sprockets.
    Sale
  • Cylinder Head Bolt Set 2014-2020 Cadillac,Chevrolet,GMC 5.3L-6.2L

    Regular price $71.99 USD
    Regular price $113.17 USD Sale price $71.99 USD
    Partsology cylinder head bolt set for 2014-2020 Cadillac, Chevrolet, GMC 5.3L-6.2L engines, includes multiple bolts for engine repair
    Sale
  • Valve Lifter Kit 1987-1994 Buick,Oldsmobile,Pontiac 2.0L

    Regular price $67.99 USD
    Regular price $106.30 USD Sale price $67.99 USD
    Engine valve lifter kit for 1987-1994 Buick, Oldsmobile, Pontiac 2.0L engines, by Partsology, with multiple valve lifters shown.
    Sale
  • Cylinder Head Spacer Shim 2011-2021 Buick,Cadillac,Chevrolet 1.4L

    Regular price $66.99 USD
    Regular price $105.28 USD Sale price $66.99 USD
    Partsology cylinder head spacer shim for 2011-2021 Buick, Cadillac, Chevrolet 1.4L engines, used on engine cylinder heads.
    Sale
  • Ignition Coil For GMC Acadia Terrain Canyon Cadillac ATS CTS SRX STS XTS V6 3.6L Buick Allure 3.0L UF569 12618542 12632479

    Regular price From $66.73 USD
    Regular price $0.00 USD Sale price From $66.73 USD
    GM Service Guy ignition coil for GMC Acadia, Terrain, Canyon, Cadillac ATS, CTS, SRX, XTS, Buick Allure 3.0L, V6 3.6L engine
  • Timing Set 1995-2007 Buick,Chevrolet,Oldsmobile,Pontiac 3.8L

    Regular price $64.99 USD
    Regular price $101.94 USD Sale price $64.99 USD
    Timing set for 1995-2007 Buick, Chevrolet, Oldsmobile, Pontiac 3.8L engine by Partsology, includes timing components on a clean background.
    Sold out
  • Vapor Canister 22963841,911-199,12573649 For Cadillac, Chevy, GMC Escalade, Avalanche, Suburban 1500, Yukon XL 1500, Hummer H2

    Regular price $64.74 USD
    Regular price $0.00 USD Sale price $64.74 USD
    GM Service Guy vapor canister for Cadillac, Chevy, GMC, Hummer H2; black plastic canister with hoses and fittings.
  • UXCELL No.23256076 Auto Trans Gear Shifter Cable for Chevrolet Traverse for GMC Acadia

    Regular price $62.14 USD
    Regular price $0.00 USD Sale price $62.14 USD
    GMC Acadia and Chevrolet Traverse auto transmission gear shifter cable by Gm Service Guy, with metal connectors and flexible black cable.
  • Electric Fuel Pump Module Assembly for Chevrolet Silverado and GMC Sierra

    Regular price $58.99 USD
    Regular price $75.79 USD Sale price $58.99 USD
    VYSN electric fuel pump module assembly for Chevrolet Silverado and GMC Sierra, showing the detailed pump unit and connections.
    Sale
  • UXCELL Automatic Transmission Shifter Cable Gear Shift Control Lever Selector Cable No.15268403 for Hummer H2 6.0L V8 2003-2007

    Regular price $58.57 USD
    Regular price $0.00 USD Sale price $58.57 USD
    GM Service Guy UXCELL automatic transmission shifter cable for Hummer H2 2003-2007, gear shift control lever and selector cable.