3-wire fuel tank level sensor fits most GY6 50cc - 250cc 139QMB 152QMI 157QMJ scooter. Fit for 4-Stroke GY6 QMJ157 QMI157 QMJ152 QMI152 engines. - The fuel sensor kit can also be used in conjunction with a fuel gauge (not included) to indicate the fuel level of the motorcycle.