Replace a failed or overcharging regulator/rectifier on your 139QMB 50cc scooter with this Full Wave Voltage Regulator/Rectifier. A faulty regulator causes battery drain, overcharging, or a complete no-charge condition � this is a direct plug-in replacement using the stock female whip connector. No wiring modifications required.
Fits 139QMB (GY50) 50cc 4-stroke scooters with a full wave charging system and female whip connector, including:
Note: Verify your scooter uses a full wave charging system before ordering. Half wave systems use a different regulator. Check your stator wire count � full wave stators typically have 3 AC output wires.
California Prop 65 Warning: www.p65warnings.ca.gov
