How do I confirm SSP-G QMB139 Stroker Crankshaft fits my scooter?

Compare the product name, SKU, photos, measurements, connector style, mounting points, and fitment notes with the part currently installed on your scooter before ordering.

What should I check before ordering SSP-G QMB139 Stroker Crankshaft?

Check your original part, scooter model, engine type, size, electrical connection, mounting style, and any listed compatibility notes. Many scooter parts look similar but are not interchangeable.

SSP-G QMB139 Stroker Crankshaft

Name: SSP-G QMB139 Stroker Crankshaft | Premium Scooter Parts
Brand: Universal Parts
SKU: 169-239
Price: 199.85 USD
Availability: InStock

$199.85

SKU: 169-239 Category: 9495 Tag: C.A.R.B. Restricted

10 in stock

*Note: Free shipping to U.S. mainland (excludes AK, HI, and territories)
Orders placed by 1pm EST on weekdays ship the same day.

Description

SSP-G QMB139 Stroker Crankshaft is an OEM-style replacement crankshaft assembly for compatible 139QMB scooter engines.

Key Details

169-239

Specifications

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 Connecting Rod Inner Diameter: 13mm Number of Teeth (oil pump drive gear): 16 (use with 33t oil pump) QMB139 50cc/49cc
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 Connecting Rod Inner Diameter: 13mm Number of Teeth (oil pump drive gear): 16 (use with 33t oil pump) QMB139 50cc/49cc
Thread Size (spline side): M12x1.25 Bearing Outer Diameter (tapered side): 42mm Bearing Outer Diameter (spline side): 47mm Number of Splines: 26 Connecting Rod Inner Diameter: 13mm Number of Teeth (oil pump drive gear): 16 (use with 33t oil pump) QMB139 50cc/49cc
Bearing Outer Diameter (tapered side): 42mm Bearing Outer Diameter (spline side): 47mm Number of Splines: 26 Connecting Rod Inner Diameter: 13mm Number of Teeth (oil pump drive gear): 16 (use with 33t oil pump) QMB139 50cc/49cc
Bearing Outer Diameter (spline side): 47mm Number of Splines: 26 Connecting Rod Inner Diameter: 13mm Number of Teeth (oil pump drive gear): 16 (use with 33t oil pump) QMB139 50cc/49cc
Number of Splines: 26 Connecting Rod Inner Diameter: 13mm Number of Teeth (oil pump drive gear): 16 (use with 33t oil pump) QMB139 50cc/49cc
Number of Teeth (oil pump drive gear): 16 (use with 33t oil pump) QMB139 50cc/49cc

Additional information

Weight	5.1 lbs
Dimensions	11 × 5 × 4 in

Compatibility / Fitment

Use the fitment details below to confirm this part matches your scooter before ordering.

Engine Size: 49cc, 50cc, QMB139
Engine Code: QMB139, 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 QMB139 engine?

A: This SKU is listed as compatible with QMB139 engine-code fitment. Always compare your original part and scooter details before ordering.

Q: Is this for 49cc scooters?

A: This SKU is listed with 49cc engine-size fitment. Confirm exact model, year, and part style before ordering.

Additional information

Weight	5.1 lbs
Dimensions	11 × 5 × 4 in