Air Starter Components starters are used worldwide on engines including CAT, Cummins, Detroit and EMD. ASC specializes in repair kits, rotors, cylinders, pinions, plates, shafts and bendix drives for brands of starters. OEM maker of air starters and parts.  ASC stocks a full line of new and remanufactured air starters including IR, TDI, Trust and PowRQuik.