Crankshaft (Full Circle); Vespa P/PX
Crankshaft (Full Circle); Vespa P/PX
$225.68
Out of stock
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Orders placed by 1pm EST on weekdays ship the same day.
Product Details
Description
Crankshaft (Full Circle); Vespa P/PX is an OEM-style replacement crankshaft assembly for compatible 139QMB scooter engines.
Key Details
- ø=57mm
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
- Fits Models / Common Applications: Vespa and other compatible models may apply.
- Fitment Notes: OEM, P/PX Series
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 Vespa?
A: This SKU is listed with Vespa model fitment where the scooter also matches the listed engine or fitment notes.
Additional information
| Weight | 5.25 lbs |
|---|---|
| Dimensions | 9.5 × 7 × 4 in |
Full circle crankshafts increase crank case compression and low end power. The 360 degree webs generate greater stability and longer life over cut back cranks.
NOTE: This crankshaft is for use on reed valve inducted engines only. To install in a rotary inducted engine, the rotary pad must be completely removed and a reed manifold installed. Please check the VIN listing to make sure that your scooter accepts this part.
We recommend upgrading your crankshaft when installing performance cylinder kits.
