Product Details
DESCRIPTION: Replacement piston assembly for 50cc 4T scooters.Product is intended as OEM equivalent for listed models. Any misuse, alteration or alternative application is prohibited by law.
Additional information
| Weight | 0.3 lbs |
|---|---|
| Dimensions | 1.75 × 1.25 × 1.25 in |
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Size: 50cc, 4-Stroke
- Engine Code: 139QMB
- Fits Models / Common Applications: CSC and other compatible models may apply.
- Fitment Notes: OEM
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: Will this fit a CSC?
A: This SKU is listed with CSC model fitment where the scooter also matches the listed engine or fitment notes.
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 | 0.3 lbs |
|---|---|
| Dimensions | 1.75 × 1.25 × 1.25 in |





