GMC Sierra 3500 HD Truck Bed and Box Parts
The GMC Sierra 3500 HD has been a workhorse platform from 2005 through 2026, and this page brings together truck bed and box parts built to fit it — from tool boxes and bed racks to step bars and rail-to-rail storage solutions. Pick your GMC Sierra 3500 HD's year above to narrow the list to truck bed and box parts with confirmed fitment. Every part shown is checked against our vehicle data.
Go Rhino 9009560SSB Classic Bed Bar Complete Kit Single Bar Single Kicker Black
Go Rhino 9009560DSB Double Bed Bar with Single Kicker Roll Bar Kit
Dee Zee M206 Specialty Series Aluminum Utility Chest with Gas Shocks
Dee Zee DZ8170DLB Rail-to-Rail Crossover Truck Tool Box Black Aluminum
Go Rhino 90002B Bed Bars Main Bar - Universal Truck Bed Rack Component
Go Rhino Sport Bar 2.0 Power-Actuated Retractable Light Mount Conversion Kit
Go Rhino 968301T Sport Bar 2.0 Three-Inch Cube Light Bracket Kit
AMP Research 74607-01A Bedxtender Hd Latch Kit, Screw And Barrel Only, Fits 05-17 Nissan Frontier
Go Rhino 90001B Bed Bar Additional A-Bar Component - Black Powder Coat
AMP Research 75610-01A BedStep 2 Truck Bed Side Step Bracket Kit
Go Rhino 9009560TDB Triple Bar Bed Bars with Double Kicker - Black
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What's here for your GMC Sierra 3500 HD
- Truck tool boxes — including single-lid, crossover, and chest styles in black, polished, and stainless steel finishes
- Truck bed racks — heavy-duty cargo rack systems designed to mount within the bed
- Step nerf truck box bars — combination step and storage bar accessories
- Truck bed rail-to-rail tool boxes — spanning the full bed width for maximum cargo organization
- Bed liners and floor mats — protective floor liner and mat options for the truck bed
The widest selection here comes from TrailFX, Highway Products, Back Rack, and Big Country Truck Accessories, each offering a broad range of styles and materials for the GMC Sierra 3500 HD. 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.