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GMC Sierra 2500HD / 3500HD

Upgrade your GMC Sierra 2500HD and 3500HD with premium parts and accessories from SBX Performance. Built for heavy-duty work, towing, and hauling, the Sierra HD lineup combines strength, durability, and modern comfort. With the right aftermarket upgrades, you can maximize power, reliability, and off-road performance.

Our collection includes suspension lift kits, leveling kits, towing upgrades, performance exhaust systems, cold air intakes, heavy-duty brakes, wheels, tires, and lighting. We also carry trusted diesel performance solutions, engine components, and work-ready accessories to help your Sierra HD perform at its best.

Whether you’re towing, hauling, or building a lifted off-road rig, our GMC Sierra 2500HD / 3500HD parts deliver the strength and performance your heavy-duty truck deserves.

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  • Mishimoto 01-05 Chevy Duramax 6.6L 2500 Red Silicone Hose KitMishimoto 01-05 Chevy Duramax 6.6L 2500 Red Silicone Hose Kit
    Mishimoto 01-05 Chevy Duramax 6.6L 2500 Red Silicone Hose Kit
    Application Summary 2004-2005 Chevrolet Silverado 2500 HD 6.6 Liter 1000, 2001-2003 Chevrolet Silverado 2500 HD 6.6 Liter 1000/M74, 2001-2005 Chevrolet Silverado 2500 HD 6.6 Liter 4L80-E, 2002 Chevrolet Silverado 2500 HD 6.6 Liter 4L80-E-HD/MN8, 2004-2005 Chevrolet Silverado 2500 HD 6.6 Liter NV4500, 2001-2003 Chevrolet...
    $378.95
    $378.95
  • Mishimoto 11+ Chevrolet Duramax 6.6L Red Silicone Coolant Hose KitMishimoto 11+ Chevrolet Duramax 6.6L Red Silicone Coolant Hose Kit
    Mishimoto 11+ Chevrolet Duramax 6.6L Red Silicone Coolant Hose Kit
    Application Summary 2011-2015 Chevrolet Express 2500 Base 6.6 Liter 6L90, 2011-2015 Chevrolet Express 3500 Base 6.6 Liter 6L90, 2015 GMC Sierra 2500 HD Base 6.6 Liter 1000, 2015 GMC Sierra 2500 HD Base 6.6 Liter 6L90, 2011-2015 GMC Sierra 2500 HD Denali 6.6 Liter...
    $447.95
    $447.95
  • aFe Magnum FORCE Stage-2 Pro 5R Cold Air Intake System 17-19 GM Silverado/Sierra 2500HD/3500HDaFe Magnum FORCE Stage-2 Pro 5R Cold Air Intake System 17-19 GM Silverado/Sierra 2500HD/3500HD
    aFe Magnum FORCE Stage-2 Pro 5R Cold Air Intake System 17-19 GM Silverado/Sierra 2500HD/3500HD
    Market Description This 9" 360-degree radial flow air filter features a 5" flange and our pre-oiled Pro 5R media with five layers of progressively finer cotton gauze media for maximum performance. It provides your engine with the largest amount of high-flowing air and delivers...
    $384.00
    $384.00

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