2020-2026 GMC Sierra 2500HD Running Boards & Side Steps

Running boards and step bars built for the 2020-2026 GMC Sierra 2500HD, fitting Regular, Double, and Crew Cab configurations. Choose from Westin, Go Rhino, N-Fab, and AMP Research PowerStep options, including 6-inch oval tubes, drop steps, and powered retractable boards for Duramax and gas trims.

Do these running boards require drilling into the rocker panel? No. Every board listed mounts to existing factory holes in the Sierra 2500HD pinch weld using vehicle-specific brackets, with most installs finishing in under an hour.

Verified fitment on every listing -- if it shows here, it bolts to your HD.