AMP Research 76137-01A PowerStep Electric Running Boards Plug N' Play System for 2007-2017 Toyota Tundra Double Cab & CrewMax Automatic, electric-powered running boards instantly extend when you open your door, and then hides itself safely out of sight when the doors close; Includes low-profile, integrated LED light system. High-strength, die-cast aluminum alloy components with an anodized and PTFE-coated, military-spec finish to resist corrosion Precision stainless steel pivot pins for rock-solid stability and maintenance free self-lubricating bushings for all-weather performance; 600 pound capacity (each side) Made in the USA and backed by a 5-year limited warranty Fitment Note: Some applications may require minor cutting