Product Details
Description
Piston Rings set(OEM) GY6 150cc is a replacement piston assembly for compatible 139QMB scooter engine repairs or rebuilds.
Key Details
- Original Parts For Scooters SKU: 164-99
Specifications
- Width: 1.8mm nMiddle Oil Ring Thickness: 1.8mm nPiston Ring Inner Diameter : 56mmnCompatibility: 157QMJ-based 125cc / 150cc / 169cc engines with the following engine codes:nn157QMJn161QMKn152QMIn1P61QMKnnnYN1P57QMJn1P52FMIn154FMInJJ157QMJnnn1P57QMJnBN157QMJnBN161QMK-AnOther QMJ, QMK, and QMI modelsnnDon't see your engine listed? If the engine code includes "QM" or "FM", this part is compatible with your vehicle.About ScootsUSA: Since our beginning in 1989, ScootsUSA has become a major supplier of parts and accessories for vintage and modern scooters. We have everything you need, from wear-and-tear items like tires and oil filters to after-market parts from brands like Malossi, NCY, Prima, YSS, Dr. Pulley, and more.nnSPECIFICATIONS: Specifications:nThin Ring Thickness: 0.4mm nThin Ring Width: 1.8mm nMiddle Oil Ring Thickness: 1.8mm nPiston Ring Inner Diameter : 56mmnnnCOMPATIBILITY: Compatibility: 157QMJ-based 125cc / 150cc / 169cc engines with the following engine codes:nn157QMJn161QMKn152QMIn1P61QMKnnnYN1P57QMJn1P52FMIn154FMInJJ157QMJnnn1P57QMJnBN157QMJnBN161QMK-AnOther QMJ, QMK, and QMI modelsnnDon't see your engine listed? If the engine code includes "QM" or "FM", this part is compatible with your vehicle.About ScootsUSA: Since our beginning in 1989, ScootsUSA has become a major supplier of parts and accessories for vintage and modern scooters. We have everything you need, from wear-and-tear items like tires and oil filters to after-market parts from brands like Malossi, NCY, Prima, YSS, Dr. Pulley, and more.nn157QMJ ENGINES: 157QMJ-based 125cc / 150cc / 169cc engines with the following engine codes:nn157QMJn161QMKn152QMIn1P61QMKnnnYN1P57QMJn1P52FMIn154FMInJJ157QMJnnn1P57QMJnBN157QMJnBN161QMK-AnOther QMJ, QMK, and QMI modelsnnDon't see your engine listed? If the engine code includes "QM" or "FM", this part is compatible with your vehicle.About ScootsUSA: Since our beginning in 1989, ScootsUSA has become a major supplier of parts and accessories for vintage and modern scooters. We have everything you need, from wear-and-tear items like tires and oil filters to after-market parts from brands like Malossi, NCY, Prima, YSS, Dr. Pulley, and more.
Additional information
| Weight | 0.3 lbs |
|---|---|
| Dimensions | 2.5 × 2.5 × 1 in |
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Size: 125cc, 150cc, GY6
- Engine Code: 139QMB, 157QMJ, NN157QMJ
- 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: Is this for 125cc scooters?
A: This SKU is listed with 125cc engine-size fitment. Confirm exact model, year, and part style before ordering.
Additional information
| Weight | 0.3 lbs |
|---|---|
| Dimensions | 2.5 × 2.5 × 1 in |





