Electric Starter / Kohler 12 098 21-SPack Size:1Kohler 12 098 21-S, Kohler 12 098 19-S, Kohler 12 098 12-S, Kohler 12 098 09-S, Kohler 12 098 14, Kohler 12 098 14-SDealer Choice 78-1215, NHC 269-5587, Oregon 33-710, Oregon 33-714, Rotary 9975Kohler CH11-CH15 and CV15Length: 7 1/4 ", OD: 3 1/16 ", Teeth: 13 teeth on gear, Striking or disassembling starter will void warranty