Crankshaft (16 Tooth); 139QMB
Crankshaft (16 Tooth); 139QMB
$68.47
10 in stock
*Note: Free shipping to U.S. mainland (excludes AK, HI, and territories)
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Product Details
Description
Crankshaft (16 Tooth); 139QMB is an OEM-style replacement crankshaft assembly for compatible 139QMB scooter engines.
Key Details
- Original Parts For Scooters SKU: 151-19
Specifications
- Stroke: 41.4mm
- Overall Length: 247mm
- Thread Size (tapered side): M10x1.25
- Thread Size (spline side): M12x1.25
- Bearing Outer Diameter (tapered side): 42mm
- Bearing Outer Diameter (spline side): 47mm
- Number of Splines: 26
- Number of Teeth (oil pump drive gear): 16
Compatibility
Fits many 139QMB-based 50cc / 80cc scooter engines. Confirm measurements, connector style, and engine family before ordering.
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.
Additional information
| Weight | 4.062 lbs |
|---|---|
| Dimensions | 11.5 × 5 × 5 in |
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: 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 50cc scooters?
A: This SKU is listed with 50cc engine-size fitment. Confirm exact model, year, and part style before ordering.
Additional information
| Weight | 4.062 lbs |
|---|---|
| Dimensions | 11.5 × 5 × 5 in |
