Voltage Regulator is Original standard, perfectly match to the original motorcycle. Voltage Regulator Rectifier is Designed with heat sink fins for better cooling, long service life. Motorcycle Voltage Regulator Rectifier With 3 yellow wires on one plug and a 4 plug with black, green and red. 2 plug, 6-wire voltage regulator/rectifier fit for GY6 125/150/250cc 4-stroke 152QMi 152QMJ 157QMI 157QMJ engine with 11 Pole Stator found on scooters, quads, ATVs, and mopeds. The purpose of a rectifier is to prevent the capacitor from discharging prior to ignition (turning the key). Upon ignition, the rectifier stops charging the capacitor, allowing the capacitor to transfer the 400-600 volt charge to the ignition coil. Specification: Condition: 100% Brand New Material: Aluminum alloy Color: as picture show Fitment: Fit for GY6 125/150/250cc 4-stroke 152QMi 152QMJ 157QMI 157QMJ engine with 11 Pole Stator found on scooters, quads, ATVs, and mopeds. Package list: 1 * Regulator Rectifier