The Hard-folding tonneau cover for the 2021 GMC Sierra is once again available to order. It was previously unavailable to order due to supplier constraints. When equipped on AT4 trim levels, the ...
This article was updated in September 2025 with new products and information. When it comes to outfitting your truck, a tonneau cover isn’t just an accessory—it’s a must-have. Whether you’re hauling ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback