Collection: 2020-2026 GMC Sierra 2500HD Bed Extenders

These bed extenders are confirmed to fit all 2020-2026 GMC Sierra 2500HD trucks, including 6'9" Standard Bed and 8'2" Long Bed configurations. Choose from AMP Research BedXTender HD Sport and Max, plus swing-gate and flip-down styles that handle MultiPro tailgate trucks without modification.

Will a bed extender work with my spray-in bedliner? Yes. Both clamp-mount and bolt-in extenders sit above the bedrail and clear factory and aftermarket spray-in liners, though drop-in plastic liners may require trimming at the mounting points.

Verified fitment on every listing -- if it is here, it bolts to your Sierra 2500HD.