AMP Research 79101-01A Air Tank Relocation Kit for Ram 2500/3500 with Standard & Crew Cabs Air Tank Relocation Kit for Ram 2500/3500 with Standard & Crew Cabs For use with AMP Research PowerStep, PowerStep XL and PowerStep XTreme electric running boards Compatible only with parts 76138-01A, 76139-01A , 77138-01A, 77148-01A , 77158-01A, 77168-01A and 75138-01A Designed and built in the USA