Product Details
Description
Stage 1 Performance Kit; 139QMB
Compatibility
Fits many 139QMB-based 50cc / 80cc scooter engines. Confirm measurements, connector style, and engine family before ordering.
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Size: 50cc, 80cc
- Engine Code: 139QMB
- Fitment Notes: Performance
Fitment Guide: This compatibility information is based on manufacturer and supplier data. Listed models are common known applications and may not include every compatible scooter. If your scooter has multiple versions or production changes, confirm the correct match before ordering. Check photos, measurements, original part numbers, engine code, model, and related fitment information whenever possible.
Common Fitment Questions
Q: Will this fit a 139QMB engine?
A: This SKU is listed as compatible with 139QMB engine-code fitment. Always compare your original part and scooter details before ordering.
Q: Is this for 50cc scooters?
A: This SKU is listed with 50cc engine-size fitment. Confirm exact model, year, and part style before ordering.
Additional information
| Weight | 25 lbs |
|---|---|
| Dimensions | 36 × 12 × 12 in |
Give that 4 stroke 50 a boost with this NCY Performance Kit. An easy upgrade that includes a stainless NCY exhaust, and the NCY performance transmission kit!
Save 10% by purchasing this kit, as opposed to buying the parts individually.
Not legal for use in California on pollution controlled vehicles. Check local laws before installing.





