Shop 6-inch running boards and nerf bars for listed 2001-2006 GMC Sierra 2500HD applications. Match the exact model year and cab configuration on the individual product page before ordering; Crew Cab, Extended Cab, and Regular Cab step systems should not be assumed interchangeable.
Choose the Right 6-Inch Step
The current live assortment includes black and stainless-finish 6-inch running boards and step-board designs for multiple Sierra 2500HD cab configurations. Confirm fitment first, then compare the listed dimensions, stepping surface, material, finish, brackets, package contents, and installation notes.
Related Sierra 2500HD Collections
2001-2006 GMC Sierra 2500HD 6-Inch Running Boards FAQ
Will every 6-inch product here fit every 2001-2006 Sierra 2500HD?
No. Exact year and cab coverage can vary by product. Use the individual product page as the controlling fitment source.
Can Crew Cab, Extended Cab, and Regular Cab 6-inch boards interchange?
Do not assume so. Cab length can change board length, bracket placement, mounting points, and step position. Choose a product specifically listed for the truck's cab configuration.
Does a 6-inch width guarantee fitment?
No. Six-inch describes the listed step width or product style, not vehicle compatibility. Verify the exact year, model, cab, and product application first.
What should I verify before ordering?
Check the exact model year and cab, listed dimensions, included brackets or hardware, package contents, and installation notes on the product page.
Aftermarket trademark disclaimer: People Auto Parts is not affiliated with, sponsored by, or endorsed by General Motors LLC. GMC, Sierra, Sierra 2500HD, GM, and related names and trademarks belong to their respective owners and are used only to identify compatible applications. Products are aftermarket parts unless an individual listing expressly states otherwise.
