139QMB / GY6 50cc Starter Motor
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Reliable Ignition: OEM 139QMB, GY650 Starter Motor
Restore your scooter’s effortless push-button start with this Genuine Chinese 50cc Scooter Starter Motor. Specifically engineered for the 50cc QMB139 engine platform found, this high-torque electric motor is designed to provide consistent cranking power, even in cold weather. Whether you are dealing with a "clicking" starter, a dead spot in the armature, or a complete motor failure, this OEM replacement ensures your commute starts on the first try.
Technical Performance Features
- High-Torque Performance: Optimized internal windings deliver the necessary rotational force to overcome engine compression quickly, reducing strain on your battery.
- Weather-Sealed Housing: Features reinforced gaskets and a corrosion-resistant finish to protect internal components from road grime and moisture.
- Precision 10-Tooth Spline: Engineered for a perfect mechanical mesh with your starter bendix, preventing "grinding" and ensuring smooth engagement every time.
- Direct Plug-and-Play: Includes the factory-correct single-wire lead for a seamless connection to your existing starter relay harness.
Comprehensive Fitment Guide
This starter motor is a direct OEM replacement for Chicago Scooter Company models and related 50cc 4-stroke platforms:
| Brand / Model | Engine Type |
|---|---|
| Chicago Scooter Co. Go | 50cc 4-Stroke (QMB139) |
| Chicago Scooter Co. Pug | 50cc 4-Stroke (QMB139) |
| Generic GY6 50cc | Fits most 139QMB / 1P39QMB Chinese Engines |
Technical Specifications
- Voltage: 12V DC
- Spline Count: 10-Tooth
- Bolt Hole Spacing: 70mm (Center to Center)
- Connection: Single-Wire (Male Bullet Connector)
Pro Tip: When installing, ensure the mounting surface is clean to provide a solid electrical ground through the engine case!
SKU: 1200-1115
Vendor: Chicago Scooter Company
Stock starter for GY50/139QMB
Shipping information
Orders are prepared as quickly as possible. Delivery times and shipping costs are calculated at checkout based on the destination and items ordered.
Returns & warranty
Please verify fitment and part number before ordering. Contact Thrifty Scooters promptly if an item arrives damaged or incorrect.