GMC Parts & Accessories
GMC truck parts and accessories for the Sierra 1500, Sierra 2500 HD and 3500 HD, Canyon, Yukon and the older Suburban, drawn from every product that carries a GMC fitment. Grilles are the biggest group here, mostly T-Rex billet inserts, followed by Go Rhino side steps and front bumpers, Pop & Lock tailgate locks, Dura-Flip hard folding tonneau covers, BackRack headache racks, Proryde levelling kits and Tekonsha brake controller harnesses.
Most of these parts are shared with the Chevrolet Silverado and Colorado, which have their own collection. Absolute Autoguard ships from Winnipeg, Manitoba across Canada, most orders in 7 to 10 business days.
Grilles, steps and bed accessories for the Sierra and Canyon
The GMC collection leans toward the front of the truck. More than a third of it is grilles, because T-Rex lists its billet inserts separately for each Sierra generation and each trim, from the 1973-1980 trucks through the current 1500 and HD. Go Rhino steps and bumpers come next, including the BR11 front bumper for the 2015-2019 Sierra 2500 HD and 3500 HD. Behind the cab you will find Dura-Flip covers, BackRack frames and adaptors, and Pop & Lock tailgate locks.
Two GMC-specific groups stand out. Tekonsha brake controller harnesses with the square-plug 30 amp connector are listed for 2007-2018 GMC, Chevrolet, Buick and Saturn vehicles, and the Yukon and the C1500, C2500, K1500 and K2500 Suburban appear on step and grille fitments that the Chevrolet page does not show. Everything else is shared with the Silverado and Colorado.
Shop GMC accessories by type
Billet grilles
T-Rex billet grille inserts and overlays in polished aluminum or black, split by year, model and whether the truck has a factory bumper-mounted or grille-mounted camera. Listings start at the 1973-1980 Chevrolet and GMC trucks and run to the current Sierra HD.
Side steps and running boards
Go Rhino 6 inch OE Xtreme II polished side steps for 2007-2014 trucks, RB-series running boards and drop steps for the later Sierra, and Canyon-specific brackets for the mid-size truck. Every listing names the cab style.
Tailgate locks
Pop & Lock kits for 1988-1998 GMC and Chevrolet pickups and later generations. A keyed tailgate lock is what makes a soft tonneau cover worth locking.
Tonneau covers
Dura-Flip hard folding covers for the 2020-2026 Sierra HD with the 6 ft 9 in box, and 1500 covers by box length. Pair them with a BackRack wide-top adaptor if you want a rack on the same truck.
Headache racks
BackRack Original frames and installation kits for the 2007-2019 Sierra 1500 and HD, wide-top tonneau adaptors for 2019-2022, and the SRX frame. For a welded steel cab guard see Westcan headache racks and cab guards.
Levelling kits and towing electrical
Proryde Superblok rear kits for 2011-2020 GM HD trucks, and Tekonsha square-plug brake controller harnesses for 2007-2018 GMC vehicles, which plug into the factory tow connector under the dash. The rest of the towing range is in trailer hitches and wiring.
Shop by model
- GMC Sierra 1500, 1999-2026, including the 1500 Limited and 1500 HD
- GMC Sierra 2500 HD and 3500 HD, 2001-2026, with 2015-2019 Go Rhino BR11 bumpers
- GMC Canyon, 2004-2026, sharing parts with the Chevrolet Colorado
- GMC Yukon, steps and grilles
- GMC C1500, C2500, K1500 and K2500 Suburban, steps and tailgate locks
Why buy GMC truck parts here
- Grilles sorted by generation and camera. T-Rex listings name the year band and note when a camera relocation is involved, which saves a return.
- Shared parts shown on both pages. Anything that fits the Sierra and the Silverado is tagged for both, so the GMC page is not a thinner copy of the Chevrolet page.
- Towing electrical that matches the truck. Tekonsha harnesses are listed by the factory plug type, not sold as universal.
- Canadian stock. Shipped from Winnipeg to every province, most in 7 to 10 business days, priced in Canadian dollars.
Choosing the right Sierra part
For grilles, note whether the truck has a forward camera and which trim it is; SLE, SLT, AT4 and Denali fronts differ. For steps, confirm regular, double or crew cab. For covers and racks, measure the box and check for an existing bed rail system or spray-in liner. For a brake controller harness, look at the connector under the dash: the square plug on 2007-2018 trucks is different from the later style, and the listing names which one it fits.
If you are not sure what fits, contact us with your year, make, model and configuration.
Common questions
Do Sierra and Silverado accessories interchange?
Steps, tonneau covers, headache racks, tailgate locks and levelling kits do, because the trucks share a cab and bed. Grilles do not, since the GMC front end is shaped differently, so buy a grille listed for the Sierra.
Which brake controller harness fits a 2015 Sierra?
The Tekonsha square-plug 30 amp brake controller harness listed for 2007-2018 GMC, Chevrolet, Buick and Saturn. It connects the factory tow-package plug to a Tekonsha or other proportional controller without splicing.
Is there a hard folding cover for the Sierra HD long box?
The Dura-Flip cover in this collection is listed for the 2020-2026 Sierra HD 6 ft 9 in box. For the 8 ft box, check the tonneau cover collection or ask us.
Do you carry Canyon parts or only full-size?
Both. Go Rhino steps and T-Rex grilles are listed for the Canyon, and the mid-size fitments are tagged separately from the Sierra so they do not mix in search.