Ignition Coil Replacement Fit For 21171-0738 21171-0711 21171-7036 Motorcycle Spare Parts Fit For part numbers 21171-0738 21171-0711 21171-7036; aligns mounting slots; wire plug terminals Dense winding core; thick insulated outer housing; solid integrated internal component layout Consistent voltage spark output; reliable cold start ; steady engine running rhythm Direct plug play mounting; simple dismount operation; convenient periodic equipment inspection Standard coil outer dimension; uniform winding spacing; stable voltage delivery for long continuous work