Starter Motor for 50cc (139QMB), GY6 50
ITEM# TT-23909
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Description
Starter Motor for 50cc Engines
This starter motor is built for scooters that use the 139QMB engine. It works as a dependable stand-in for the original component, so it suits anyone keeping their scooter in running order. When your engine becomes hard to start, this part is worth considering. It is also one of the essential GY6 50cc scooter parts for helping your engine turn over quickly and smoothly.
Construction and Compatibility
The mounting bolt holes are spaced 70mm apart, so the motor lines up accurately with your scooter. The shaft measures 7.25mm across in total diameter. It fits several engine codes, among them 139QMA, 1P39QMB, and others. It is a good option when you need to swap out a worn or faulty starter motor.
When to Replace Your Starter Motor
A starter motor that is wearing out often makes the engine hard to start or produces odd sounds during cranking. If you notice either problem, a replacement may be the right move. Maintaining the starter in good condition plays a real part in keeping the engine performing reliably.
Specifications
- Bolt Hole Spacing: 70mm
- Total Diameter of Shaft: 7.25mm
- OEM Part Number: 139QMB
Fitment
Compatible with:
- 139QMB engine
- 139QMA engine
- 139FMA-2 engine
- BD1P39QMB engine
- 1P39QMB engine
- 1P39QMA-2 engine
- YN139QMB engine
- JJ1P39QMB engine
- BN139QMB engine
- 147QMD engine
How to choose: Locate the engine code stamped on your scooter's engine and check it against the list above. The starter's mounting bolt holes should measure 70mm apart, and the shaft should have a total diameter of 7.25mm.
Shop more: GY6 50cc Scooter Parts (139QMB) · GY6 Scooter Parts · Scooter Starters & Relays · Electric Scooter Hub Motors & Controllers · Scooter Parts
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