Product Details
Description
Malossi, Piston (61.0); VNX Standard is a replacement piston assembly for compatible 139QMB scooter engine repairs or rebuilds.
Replacement Part Details
Use this part when the original component is worn, damaged, missing, or no longer working correctly. Many scooter parts can look similar but use different sizes, plugs, brackets, thread patterns, or mounting styles, so careful comparison before purchase is recommended.
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Code: 139QMB
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.
Additional information
| Weight | 0.5 lbs |
|---|---|
| Dimensions | 4.5 × 4 × 4 in |
Piston kits for your 135, 166, and 210 Malossi cylinder kits. Replacement kit comes with piston, rings, pin, and circlips. Please specify which cylinder kit you have and whether you need on size or oversize when ordering. Also, on some of the 210 kits pistons can be sized by a letter i.e. A, B, C, etc… This should be visible on your old cylinder and old piston, although not all kits have this.
Malossi Parts Number: 3416170
Not legal for use in California on pollution controlled vehicles. Check local laws before installing.





