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

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  • Engine Water Pump Outlet Thermostat OE:12674639 For Chevrolet Silverado Suburban Tahoe Cadillac Escalade Sierra/Yukon 2014-2020

    Regular price $58.25 USD
    Regular price $0.00 USD Sale price $58.25 USD
    GMC Yukon water pump outlet thermostat for Chevrolet Silverado, Suburban, Tahoe, Cadillac Escalade, 2014-2020
  • Water Pump 2011-2021 Buick,Chevrolet 1.4L

    Regular price $56.99 USD
    Regular price $91.74 USD Sale price $56.99 USD
    Partsology water pump for 2011-2021 Buick and Chevrolet 1.4L engines, showcasing the simple pump design with mounting details.
    Sale
  • Valve Lifter Kit 1987-1993 Buick,Chevrolet,Oldsmobile 2.0L-2.2L

    Regular price $55.99 USD
    Regular price $87.43 USD Sale price $55.99 USD
    Partsology engine valve lifter kit for 1987-1993 Buick, Chevrolet, Oldsmobile 2.0L-2.2L engines, shown in the image.
    Sale
  • 8pcs Spark Plug Wire Ignition Cables M8-48322 for Chevrolet Avalanche Corvette Express Silverado,for Savana Sierra Yukon

    Regular price $55.26 USD
    Regular price $0.00 USD Sale price $55.26 USD
    Gm Service Guy 8-piece spark plug wire ignition cables set for Chevrolet Avalanche, Corvette, Silverado, Yukon, Sierra, Savana vehicles.
  • Variable Valve Timing (VVT) Solenoid 2011-2021 Buick,Cadillac,Chevrolet 1.4L

    Regular price $53.99 USD
    Regular price $84.91 USD Sale price $53.99 USD
    Simple VVT solenoid for 2011-2021 Buick, Cadillac, Chevrolet 1.4L engines, by Partsology, showing the valve timing control component.
    Sale
  • Balance Shaft Bearing Set 2014-2021 Silverado & GMC Sierra, 2018-2022 GMC Savana 4.3L V6

    Regular price $51.99 USD
    Regular price $81.69 USD Sale price $51.99 USD
    Partsology balance shaft bearing set for 2014-2021 Silverado, GMC Sierra, and 2018-2022 GMC Savana 4.3L V6 engine components
    Sale
  • Cylinder Head Gasket 2014-2020 Chevrolet,GMC 5.3L

    Regular price $49.99 USD
    Regular price $79.04 USD Sale price $49.99 USD
    Partsology engine cylinder head gasket for 2014-2020 Chevrolet and GMC 5.3L V8 engines, visible in a close-up view.
    Sale
  • Valve Lifter 2005-2020 Buick,Cadillac,Chevrolet,GMC,Isuzu,Pontiac,Saab 4.3L-6.2L

    Regular price $46.99 USD
    Regular price $73.97 USD Sale price $46.99 USD
    Partsology valve lifter for 2005-2020 Buick, Cadillac, Chevrolet, GMC, Isuzu, Pontiac, Saab 4.3L-6.2L engine, metal component.
    Sale
  • Crankshaft Main Bearing Set 2014-2020 Chevrolet,GMC 5.3L (Oversizes Available)

    Regular price $45.99 USD
    Regular price $72.02 USD Sale price $45.99 USD
    Partsology crankshaft main bearing set for 2014-2020 Chevrolet and GMC 5.3L engines, includes oversize options, shown in the image.
    Sale
  • ACA-1800 Adjustable Transmission 21" Column Shift Linkage Kit For GM 4L60 4L60E 4L80E TH350

    Regular price $43.05 USD
    Regular price $0.00 USD Sale price $43.05 USD
    Gm Service Guy ACA-1800 adjustable transmission 21-inch column shift linkage kit for GM 4L60, 4L60E, 4L80E, and TH350 transmissions
  • Cylinder Head Gasket 2014-2020 Cadillac,Chevrolet,GMC 6.2L

    Regular price $42.99 USD
    Regular price $68.03 USD Sale price $42.99 USD
    Cylinder head gasket for 2014-2020 Cadillac, Chevrolet, GMC 6.2L engine by Partsology, showing the gasket's detailed design.
    Sale
  • Timing Cover Gasket Set 2011-2021 Buick,Chevrolet 1.4L

    Regular price $41.99 USD
    Regular price $66.00 USD Sale price $41.99 USD
    Timing cover gasket set for 2011-2021 Buick and Chevrolet 1.4L engines by Partsology, shown in the image.
    Sale
  • 15055342 15055343 Heater Hose Connector: Fits for Cadillac Escalade, for Chevy Tahoe/ for Silverado,for GMC Sierra/for Yukon

    Regular price $41.43 USD
    Regular price $0.00 USD Sale price $41.43 USD
    GMC Yukon and Yukon XL heater hose connector by Gm Service Guy, compatible with Cadillac Escalade, Chevy Tahoe, Silverado, and GMC Sierra
  • For Buick Regal Envision Cadillac ATS CT6 Chevrolet Malibu Impala GMC Canyon Acadia 2013-202 New 12654078 Car Ignition Coil

    Regular price From $41.40 USD
    Regular price $0.00 USD Sale price From $41.40 USD
    GM Service Guy ignition coil for Buick Regal, Cadillac ATS, Chevrolet Malibu, GMC Canyon, 2013-2023 vehicle engine ignition part
  • Cylinder Head Gasket 2011-2021 Buick,Cadillac,Chevrolet 1.4L

    Regular price $39.99 USD
    Regular price $63.27 USD Sale price $39.99 USD
    Cylinder head gasket for 2011-2021 Buick, Cadillac, Chevrolet 1.4L engine, shown in this engine repair image.
    Sale
  • Cylinder Head Bolt Set 2011-2021 Buick,Cadillac,Chevrolet 1.4L

    Regular price $38.99 USD
    Regular price $61.43 USD Sale price $38.99 USD
    Partsology cylinder head bolt set for 2011-2021 Buick, Cadillac, Chevrolet 1.4L engines, shown in image HBK343_1.
    Sale