Description: GM Tonneau Cover, Adapter (Part Number: 17802389) is a tailgate molding/protector adapter kit required when installing a hard-shell tonneau cover. Replaces the original tailgate protector to match the bed side edge height and protect the top of the tailgat ...

Description: Constructed with integrated crossbows- it easily rolls up to allow full access to the bed and features an embossed GMC logo. Shield the cargo in your Sierra and help protect the bed itself from harsh weather with this Soft- Roll-Up Tonneau Cover.