GOOFIT
GY6 49cc 50cc 125cc 150cc 8-Coil 4-Wire AC Stator for 139QMB 157QMJ
GY6 49cc 50cc 125cc 150cc 8-Coil 4-Wire AC Stator for 139QMB 157QMJ
Couldn't load pickup availability
Product Overview
Replace a weak, burned, or failed stator with this 8-coil 4-wire AC magneto stator, designed for select GY6 engine platforms commonly used on scooters, mopeds, ATVs, go karts, buggies, and small powersports vehicles.
This stator is commonly used on GY6 49cc, 50cc, 110cc, 125cc, and 150cc engines, including 139QMB, 147QMD, 152QMI, and 157QMJ engine codes. It helps generate electrical power for the ignition and charging system while the engine is running.
If your GY6 scooter or ATV has weak spark, poor charging, dim lights, unstable voltage, or stator-related electrical failure, replacing the stator may help restore normal electrical performance.
Because GY6 engines use different stator types, this part must be matched by AC/DC system type, coil count, wire count, plug layout, trigger coil position, and physical dimensions before ordering.
Product Compatibility
| Engine / Vehicle Type | Common Application | Fitment Notes |
|---|---|---|
| GY6 49cc / 50cc | Scooters, mopeds, small ATVs | Commonly used with 139QMB engines; confirm AC 8-coil 4-wire layout |
| GY6 110cc | ATVs, go karts, small powersports vehicles | Fits only if original stator dimensions and connector match |
| GY6 125cc | Scooters, mopeds, ATVs, go karts | Commonly used with 152QMI engines; check plug layout before ordering |
| GY6 150cc | Scooters, mopeds, ATVs, go karts | Commonly used with 157QMJ engines; must match 8-coil 4-wire AC stator |
| 139QMB | 49cc / 50cc GY6-style engine | Verify AC/DC type, connector, and mounting hole spacing |
| 147QMD | Small GY6-style engine | Fitment depends on original stator and wiring system |
| 152QMI | 125cc GY6-style engine | Confirm 8-coil 4-wire AC stator configuration |
| 157QMJ | 150cc GY6-style engine | Confirm wire count, trigger position, and outer diameter |
Important Fitment Note:
This part is not selected by engine size alone. GY6 engines may use 6-coil, 8-coil, 11-coil, 4-wire, 5-wire, AC, or DC stator designs. Please compare your original stator carefully before ordering.
Specifications
| Specification | Details |
| Product Type | Magneto Stator / Generator Coil |
| Coil Count | 8 Coils / 8 Poles |
| Wire Count | 4 Wire |
| Electrical Type | AC |
| Inner Diameter | 29mm / 1.1" |
| Outer Diameter | 88mm / 3.5" |
| Iron Core Height | 11mm / 0.43" |
| Mounting Hole Distance | 40mm / 1.6" |
| Thickness | 28mm / 1.1" |
| Trigger Mounting Hole Distance | 33mm / 1.3" |
| Trigger Mounting Hole Diameter | 5mm / 0.20" |
| Compatible Engine Codes | 139QMB, 147QMD, 152QMI, 157QMJ |
| Application | Scooter / Moped / ATV / Go Kart Charging & Ignition System |
| Fitment Type | Universal GY6 Style, Match by Size and Wiring |
Key Features
- Designed for select GY6 49cc, 50cc, 110cc, 125cc, and 150cc engines
- Fits many scooters, mopeds, ATVs, go karts, quads, and small powersports vehicles
- Compatible with select 139QMB, 147QMD, 152QMI, and 157QMJ engine platforms
- 8-coil 4-wire AC stator helps support ignition and charging system output
- Helps address weak spark, poor charging, dim lights, unstable voltage, or stator failure
- Compact 88mm outer diameter design for matching GY6 stator applications
- Original wire count, plug layout, trigger coil position, and AC/DC type must be checked before installation
OEM Cross Reference
No confirmed OEM part number is available for this universal GY6-style stator.
Please do not order this part by engine size or vehicle type alone. Match your original stator by coil count, wire count, AC/DC system type, connector shape, trigger coil position, inner diameter, outer diameter, and mounting hole distance before purchase.
Share
Fitment FAQ
Will this part fit my specific model and year?
This stator is designed for select GY6-style engines, including 49cc, 50cc, 110cc, 125cc, and 150cc applications using 139QMB, 147QMD, 152QMI, or 157QMJ engine codes. However, GY6 fitment cannot be confirmed by model year or engine size alone. Please compare your original stator’s AC/DC type, coil count, wire count, plug layout, inner diameter, outer diameter, mounting hole distance, trigger coil position, and thickness before ordering.
Do I need to match the OEM part number?
An OEM part number is not provided for this universal GY6-style stator. Instead, please match the original stator by physical size and wiring configuration. The most important checks are 8-coil layout, 4-wire design, AC electrical type, 29mm inner diameter, 88mm outer diameter, 40mm mounting hole distance, and 33mm trigger mounting hole distance.
What models or situations does this part not fit?
This part does not fit GY6 engines that use a different stator type, such as 6-coil, 11-coil, 5-wire, DC-type, or different plug-layout stators. It also does not fit engines with a different flywheel, different trigger coil position, different mounting hole distance, or different connector shape. Do not select this part based only on 49cc, 50cc, 125cc, or 150cc engine size.
What should I check before ordering?
Before ordering, please check your engine code, original stator coil count, wire count, AC/DC type, connector shape, plug quantity, inner diameter, outer diameter, mounting hole distance, trigger mounting hole distance, trigger mounting hole diameter, and stator thickness. For best fitment, compare the product photos and specifications with your original stator before purchase.