Electric starter motor for lawn mower lawn tractor Adaptable to: kawasaki engines FH451V FH500V FH531V FH580V FH601V FH641V FH680D FH680V FH721D FH721V FH770D Number of teeth: 10 Code : 40-055 Original part number reference : 21163-7001, 21163-7010, 21163-7022, 99999-7080 KAWASAKI