AMP Research PowerStep XL - 77158-01A

PowerStep XL

Part 77158-01A from AMP Research.

Automatic power-deploying running board from AMP Research’s PowerStep XL line — a lower step than standard PowerStep for taller / lifted diesel HD trucks.

Integrated LED lighting on the boards when deployed (per AMP Research).

Rated to hold up to 600 lb per AMP Research’s published capacity for this board line.

AMP Research publishes a 5-year / 60,000-mile warranty on qualifying PowerStep kits.

Plug-n-play style harness where AMP Research lists it for this PN.

Who it's for

Diesel HD Super Duty, Ram HD, and GM HD owners who want automatic power steps (or the listed AMP accessory) on the cab configuration AMP Research lists for this PN.

Key specs (per AMP Research)

What's included

• PowerStep XL board assemblies as AMP Research packages this PN
• Motors / linkage / rocker integration as listed
• LED lighting where included for this kit
• Hardware and vehicle-specific harness as packaged

Fitment notes

• Confirm cab style, years, drive type, and door/handle setup against AMP Research’s application for 77158-01A.
• Professional install recommended for wiring and rocker alignment.

Professional install available at Powertech Diesel, Idaho Falls — call 208-542-7793.