Collection: 2007-2014 GMC Sierra HD (GMT900)

The GMT900-generation GMC Sierra 2500HD ran from 2007 through 2014 and earned a reputation as one of the most capable heavy-duty trucks of its era. Built on a robust full-frame chassis and available with both gas and Duramax diesel powerplants, these trucks respond well to aftermarket upgrades — whether you're adding lift, improving suspension performance, or hardening the drivetrain for serious use.

What to Look for When Upgrading Your GMT900 Sierra HD

Because the Sierra 2500HD is often used for towing, hauling, and off-road work simultaneously, it pays to think through upgrades with your primary use case in mind. Suspension components should be matched to your typical load and terrain. Exterior and protection parts need to account for the truck's size and clearance requirements. And any powertrain or exhaust work should be compatible with your specific engine — the gas and Duramax diesel platforms have different needs and different upgrade paths.

• Confirm fitment by cab style, bed length, and engine type before ordering
• Consider how towing or payload requirements affect suspension choices
• Check whether your truck has the factory integrated trailer brake controller, as it can affect some electrical upgrades
• Gas and Duramax diesel models share some parts but diverge significantly on intake, exhaust, and tuning

All parts in this collection are listed specifically for the 2007-2014 GMC Sierra 2500HD. Use the filters to narrow by system or part type and find what your truck actually needs.