Blue Line Voltage Regulator / Rectifier - 139QMB Scooters

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.

Features

• Full wave regulator/rectifier — direct replacement for 139QMB 50cc scooters
• Female whip connector — plug-in fit, no wiring modifications required
• Prevents battery drain and overcharging from a failed regulator
• Verify full wave charging system before ordering (3 AC stator wires)

Specifications

• Type: Full wave regulator/rectifier
• Connector: Female whip
• Application: 139QMB 50cc 4-stroke scooters

Model Fitment

Fits 139QMB (GY50) 50cc 4-stroke scooters with a full wave charging system and female whip connector, including:

• Chicago Scooter Company go.
• Most 139QMB-powered 50cc Chinese scooters with full wave stators

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