Original Kohler Engine Starter 12 098 21-s Replaces: 12 098 09-s, 1209809, 1209809s, 12 098 12-s, 1209812, 1209812s, 12 098 19-s, 1209819, 1209819s, 12 098 21-s, 1209821, 1209821s. Fits: CH11-15 and CV15 Length: 7-1/4" O.D. Housing: 3-1/16" 13 Teeth on gear