Sierra 3500 HD Accessories

Adding accessories to your Sierra 2500HD and 3500HD is as easy as talking to your GMC dealership's sales and service staff. GMC Accessories can be installed right at the dealership before you take delivery — or even when you stop in for an oil change. And every GMC Accessory is professionally engineered, manufactured and validated to GMC's standards for quality, convenience and peace of mind.

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  • Bed Extender - Associated Accessories
    Bed Extender - Associated Accessories
    Expand the cargo capacity of your vehicle with this Bed Extender. Compatible with Bedliners and Tonneau Covers. It swings out to provide additional functional length over an open tailgate or swings in to create a contained cargo area. Cargo and load capacity limited by weight and distribution. S...
    MSRP - $249
  • Bedliner
    Help protect the bed of your rugged Sierra with a durable Bedliner.  This Bedliner is fully ribbed, with a skid-resistant floor to help minimize load shifting.  Black with GM logo.  Includes tailgate liner.
    MSRP - $345
  • Bed Mat
    Bed Mat
    Reduce cargo shifting with this easy-to-install, non-skid, rubber Bed Mat designed to fit the contours of your Sierra precisely. Features the GM logo.
    MSRP - $130
  • Bed Net
    Bed Net
    Help secure items in the bed of your Sierra with this Bed Net. Heavy-duty stretch shock cords radiate from a stainless steel center ring to focus the net's strength at the center of the load, where it's needed. Includes mounting hardware for easy installation.
    MSRP - $50
  • Bed Rug
    Bed Rug
    Designed specifically to fit the contours of your vehicle, the Bed Rug features a durable carpet-like surface that resists water, stains, solvents and chemicals. Its molded foam backing helps protect the bed from scratches.
    MSRP - $475
  • Soft Roll-Up Tonneau Cover - Associated Accessories
    Soft Roll-Up Tonneau Cover - Associated Accessories
    Help protect cargo stored in the bed of your Sierra with this Sport Roll Soft Roll-Up Tonneau Cover by Advantage®. This cover is designed to be fully adjustable along the length of the bed and sit above the truck bed rails, creating a smooth, stylish look. Associated Accessories, non-GM warranty. Ad...
    MSRP - $329