50cc (139QMB) / GY6 50cc Starter Motor

Starter Motor for 50cc GY6 Engines

This starter motor suits 50cc GY6 engines and is built to give your scooter dependable starting. It works as a direct swap-in, so it fits and operates as the original did. Browse our GY6 50cc scooter parts to keep the starting system in good shape. Its high-torque design helps it crank reliably, including in colder conditions.

High-Torque Performance

A 12V DC motor powers this starter for steady cranking force. The motor uses a 10-tooth spline that meshes cleanly with the starter bendix. The single-wire ring terminal lead makes hookup simple, since it plugs straight into the existing starter relay harness.

Installation Details

Bolt holes are spaced 70mm apart, measured center to center. That spacing lets the unit work across several scooter models and keeps replacement uncomplicated. If your scooter is struggling to start, this is often one of the first parts worth checking.

Specifications

• Voltage: 12V DC
• Spline Count: 10-tooth
• Bolt Hole Spacing: 70mm (center to center)
• Connection: Single-wire ring terminal
• Fits: GY6 50cc (139QMB) engines and CSC Go, Go Max, Pug 50, Nitro Sport 50 and Bella Classic 50

Fitment

Fits:

• GY6 50cc (139QMB) (4-stroke engines, 70mm bolt hole spacing)
• CSC Bella Classic 50
• CSC Go Max
• CSC Nitro Sport 50
• CSC Pug 50

How to choose: Confirm that your starter has a 10-tooth spline and 70mm bolt hole spacing before ordering. This motor operates on 12V DC.

Where it goes: refer to part #2 on the starter & oil pump diagram for the GY6 50cc (139QMB) and CSC Go; part #2 on the starter and oil pump diagram for the CSC Bella Classic 50; part #2 on the starter oil pump diagram for the CSC Go Max.

Shop more: GY6 50cc Scooter Parts (139QMB) · GY6 Scooter Parts · Scooter Starters & Relays · Electric Scooter Hub Motors & Controllers · Scooter Parts