Collection: AFTERMARKET ENGINE & TRANSMISSION ACCESSORIES

Premium Aftermarket Accessories for GM Engine and Transmission

Upgrade your vehicle’s performance with high‑quality aftermarket engine and transmission accessories designed for durability, precision, and power. From performance intakes and cooling components to upgraded clutches, torque converters, sensors, and mounts, our products help drivers get more reliability and responsiveness out of every ride.

Whether you’re restoring a classic, building a track-ready setup, or just improving daily drivability, our selection delivers enhanced horsepower, smoother shifting, better heat management, and longer component life. We focus on trusted brands, proven engineering, and parts that fit right the first time—so you can maintain, customize, or optimize your vehicle with confidence.

 

Enhance Performance with GM Engine Components

 

 

Aftermarket accessories designed for your GM engine can significantly improve overall vehicle performance and reliability. Whether you seek better fuel efficiency or increased horsepower, compatible engine parts offer tailored solutions for maintenance and upgrades. Choosing high-quality GM engine accessories ensures seamless fitment and durability, helping your vehicle perform at its best for longer periods. These components are engineered to meet or exceed OEM specifications, offering peace of mind while optimizing your engine’s power and longevity on the road.

 

 

Durable and Efficient GM Transmission Parts

 

 

Maintaining or upgrading your GM transmission with aftermarket accessories provides improved shifting smoothness and enhanced transmission life. These parts are crafted for durability and precision, ensuring reliable power transfer from engine to wheels. Selecting the right GM transmission accessories helps prevent costly repairs by reducing wear and tear. OEM-quality alternatives offer a cost-effective way to keep your transmission running efficiently without sacrificing performance or compatibility with your vehicle’s systems.

 

 

Benefits of Upgrading Your Engine and Transmission

 

 

Upgrading both your engine and transmission with aftermarket accessories can greatly improve your vehicle’s responsiveness and fuel economy. Well-selected parts contribute to reduced mechanical stress and heat generation, extending the lifespan of critical components. Such enhancements not only boost driving enjoyment but also preserve the value of your vehicle. By investing in quality GM engine and transmission accessories, you ensure your vehicle performs reliably, maintains smooth operation, and meets the demands of everyday driving and performance needs alike.

 

 

 

Enhance Performance with GM Engine Components

 

 

Aftermarket accessories designed for your GM engine can significantly improve overall vehicle performance and reliability. Whether you seek better fuel efficiency or increased horsepower, compatible engine parts offer tailored solutions for maintenance and upgrades. Choosing high-quality GM engine accessories ensures seamless fitment and durability, helping your vehicle perform at its best for longer periods. These components are engineered to meet or exceed OEM specifications, offering peace of mind while optimizing your engine’s power and longevity on the road.

 

 

Durable and Efficient GM Transmission Parts

 

 

Maintaining or upgrading your GM transmission with aftermarket accessories provides improved shifting smoothness and enhanced transmission life. These parts are crafted for durability and precision, ensuring reliable power transfer from engine to wheels. Selecting the right GM transmission accessories helps prevent costly repairs by reducing wear and tear. OEM-quality alternatives offer a cost-effective way to keep your transmission running efficiently without sacrificing performance or compatibility with your vehicle’s systems.

 

 

Benefits of Upgrading Your Engine and Transmission

 

 

Upgrading both your engine and transmission with aftermarket accessories can greatly improve your vehicle’s responsiveness and fuel economy. Well-selected parts contribute to reduced mechanical stress and heat generation, extending the lifespan of critical components. Such enhancements not only boost driving enjoyment but also preserve the value of your vehicle. By investing in quality GM engine and transmission accessories, you ensure your vehicle performs reliably, maintains smooth operation, and meets the demands of everyday driving and performance needs alike.

 

 

993 products

993 products

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  • Fuel Pump Assembly E3559M Mu1378 P74904M Fg0810 Sp6027M 88966962 for 02-04 Chevy Tahoe

    Regular price $211.54 USD
    Regular price $0.00 USD Sale price $211.54 USD
    GM Service Guy fuel pump assembly for Chevrolet Tahoe and Suburban, includes E3559M, Mu1378, P74904M, and more
  • Engine Water Pump Outlet Thermostat OE:12674639 For Chevrolet Silverado Suburban Tahoe Cadillac Escalade Sierra/Yukon 2014-2020

    Regular price $58.21 USD
    Regular price $0.00 USD Sale price $58.21 USD
    GMC Yukon water pump outlet thermostat for Chevrolet Silverado, Suburban, Tahoe, Cadillac Escalade, 2014-2020
  • Comp Cams 5/16 MAGNUM PUSHROD 7.350

    Regular price $14.63 USD
    Regular price Sale price $14.63 USD
    FR SPORT Comp Cams 5/16 Magnum Pushrod for engine, showing a close-up of the black metal pushrod with detailed measurements.
  • Comp Cams .015 X 1.250 Spring Shim

    Regular price $16.56 USD
    Regular price Sale price $16.56 USD
    FR SPORT Comp Cams engine valve spring shim, .015 x 1.250 size, designed for engine valve spring adjustment.
  • Comp Cams 5/16 Magnum Pushrod 8.350"

    Regular price $168.80 USD
    Regular price Sale price $168.80 USD
    FR SPORT Comp Cams 5/16 Magnum Pushrod set, 8.350 inches long, engine push rods for high-performance automotive engines.
  • Comp Cams Magnum 280HR; Hydraulic Roller; '87-'94 GM 4.3L

    Regular price $612.17 USD
    Regular price Sale price $612.17 USD
    FR SPORT Comp Cams Magnum 280HR hydraulic roller engine camshaft for '87-'94 GM 4.3L V6 engine, with detailed metal components.
  • Comp Cams HI-TECH PUSHROD 5/16 8.600

    Regular price $20.95 USD
    Regular price Sale price $20.95 USD
    FR SPORT Comp Cams HI-TECH Engine Push Rod, 5/16 inch diameter, 8.600 length, high-performance automotive engine part
  • Comp Cams 1.300" X .520" Id Spring Seat For Gm Ls1

    Regular price $72.95 USD
    Regular price Sale price $72.95 USD
    FR SPORT engine valve spring seat for GM LS1, 1.300-inch by 0.520-inch spring seat, designed for high-performance engine valves.
  • Comp Cams 5/16 PTFE SEAL

    Regular price $37.95 USD
    Regular price Sale price $37.95 USD
    FR SPORT Comp Cams 5/16 PTFE Engine Valve Stem Oil Seal Set, durable and high-quality for engine valve sealing.
  • Comp Cams Spring ID Locators .060" Thick, .570" ID, 1.550" O.D

    Regular price $72.95 USD
    Regular price Sale price $72.95 USD
    FR SPORT engine valve spring seat with spring ID locators, .060" thick, .570" ID, and 1.550" OD, shown in the image.
  • Comp Cams HI-TECH PUSHROD 5/16 7.000

    Regular price $222.20 USD
    Regular price Sale price $222.20 USD
    FR SPORT Comp Cams HI-TECH Pushrod Set, 5/16 inch diameter, 7.000 length, engine push rods for performance applications
  • Comp Cams 455 Oldsmobile High Energy Pushrod

    Regular price $10.95 USD
    Regular price Sale price $10.95 USD
    FR SPORT Comp Cams 455 Oldsmobile High Energy Pushrod for engine performance, showing a close-up of the durable metal pushrod.
  • Comp Cams CR6 264S-10

    Regular price $318.03 USD
    Regular price Sale price $318.03 USD
    FR SPORT Comp Cams CR6 264S-10 engine camshaft with metal lobes and gear, designed for high-performance automotive engines.
  • Comp Cams Inline Engine Gear Sets; Pontiac 4 Cyl. (151c.i. Iron Duke) Fiber Cam

    Regular price $82.98 USD
    Regular price Sale price $82.98 USD
    FR SPORT Comp Cams inline engine gear set for Pontiac 4-cylinder Iron Duke, includes fiber cam gear for timing and engine performance.
  • Comp Cams P HIGH ENERGY ROCKER ARM

    Regular price $18.95 USD
    Regular price Sale price $18.95 USD
    FR SPORT Comp Cams P High Energy Engine Rocker Arm, durable metal automotive component for performance engine applications
  • Comp Cams Olds 280H Cam & Lifter Kit

    Regular price $433.91 USD
    Regular price Sale price $433.91 USD
    FR SPORT Comp Cams Olds 280H engine camshaft and lifter kit with metal cam and multiple lifters for performance engine upgrade