GMC Sierra 3500 HD Body Parts
The GMC Sierra 3500 HD has been built from 2005 through 2026, and this page brings together body parts spanning that entire range — from structural frame components and rocker panels to doors, bumpers, seats, and truck box parts. Select your year above and we'll show only the body parts that fit your GMC Sierra 3500 HD. Fitment is checked against our vehicle data for every part listed.
Shop GMC Sierra 3500 HD Parts by Category
What's here for your GMC Sierra 3500 HD
- Frame components and structural body pieces
- Rocker panels in OE-replacement and custom styles
- Seats and interior seating components
- Doors and door-related assemblies
- Truck box parts including bed accessories and kits
- Front and rear bumpers in finishes including black, stainless steel, and polished
The widest selection here comes from Covercraft, Dorman, Go Rhino, and FIA, covering everything from replacement panels to running boards and floor liners. Other categories GMC Sierra 3500 HD owners shop for: GMC Sierra 3500 HD Springs and Suspension Parts, GMC Sierra 3500 HD Air and Fuel Filters and GMC Sierra 3500 HD Shocks and Struts, or browse all GMC Sierra 3500 HD parts and accessories.