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 designed, engineered, tested and backed to GMC's standards for quality, convenience and peace of mind.
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...
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.
Get the next-generation protection performance for the bed of your Sierra HD with this ultra-tough 100% polypropylene Bed Mat by BedRug™. Both fade- and UV-resistant, this bed mat brings the look and feel of carpet to a water-resistant fiber that's slip- and skid-resistant and dries in as little as ...
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.
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.
Help shield the inside of your Sierra's tailgate from scratches and other damage with this custom-molded ribbed Tailgate Liner.
Get the next-generation protection performance for the tailgate of your Sierra HD with this Tailgate Mat by BedRug™. This tailgate mat brings the look and feel of carpet to a water-resistant fiber that's slip- and skid-resistant and dries in as little as 20 minutes. (Can be used with or without avai...
These Hard Folding Tri-Fold Tonneau Covers provide quick-and-easy access to the cargo area of your Sierra while providing protection for items in the pickup bed. Contact your GMC dealership for more information.
This Soft Folding Tonneau Cover is constructed of durable, lightweight black grained vinyl to help protect truck bed cargo from the elements. The tri-fold design allows for quick and easy installation and removal.
Shield the cargo in your Sierra and help protect the bed itself from harsh weather with this Soft, Roll-Up Tonneau Cover. Constructed with integrated crossbows, it easily rolls up to allow full access to the bed and features an embossed GMC logo.
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...
This hardworking Tool Box can handle up to 250 lbs. of storage* and has many great features; it mounts securely to the bed of your vehicle without drilling, an integrated handle makes it easy to remove and carry, and a removable sliding tray with rubber mat is included. Non-GM warranty. Warranty by ...
Constructed of 0.75mm diamond-patterned aluminum with a full-length stainless steel hinge and foam-filled lid that supports 500 lbs this Tool Box is built to last. It can handle over 250 lbs of stored equipment and includes a removable sliding tray with rubber isolation mat dual gas shocks for smoo...
MSRP -$419 to $800
Add additional storage space to your Sierra HD with this 60-Inch Side Mount Tool Box by UWS®. Associated Accessories – non GM warranty. UWS®, a division of Thule®, provides a 3-year/36,000 mile manufacturer’s warranty. For details on the warranty provided by UWS®, please call (800) 432-4685.