Product Details
Description
Universal QMB139 50cc Carburetor w/ Vacuum Port: 19mm
Key Details
- 151-233
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Size: 50cc, QMB139
- Engine Code: QMB139
- Fitment Notes: Universal Fit
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 50cc scooters?
A: This SKU is listed with 50cc engine-size fitment. Confirm exact model, year, and part style before ordering.
Additional information
| Weight | 1.5 lbs |
|---|---|
| Dimensions | 7 × 6 × 6 in |
| Condition | New |
|---|
The Universal Parts QMB139 Type-4 19mm carburetor is a direct-fit replacement for GY6 50cc 4-stroke scooter engines. Featuring a built-in accelerator pump and vacuum port, this carb delivers crisp throttle response, reliable cold starts, and emissions-compliant performance right out of the box. Whether you're restoring a tired scooter or upgrading a worn-out carb, this is a proven, plug-and-play solution. SKU: 151-233.
Key Features
- 19mm precision venturi for optimized fuel-air mixture
- Built-in accelerator pump for responsive throttle
- Vacuum port for emissions canister compatibility
- Electric choke with 2-pin male plug connector
- EPA-regulated, emissions-ready design
- 38mm air filter mount (standard fitment)
Technical Specifications
- Intake Inner Diameter: 19mm
- Air Filter Mount: 38mm
- Choke Type: Electric (2-pin male plug)
- Engine Type: GY6 / QMB139 50cc 4-stroke
- Weight: 1.5 lbs
- Dimensions: 7" L x 6" W x 6" H
| Engine | Displacement |
|---|---|
| GY6 / QMB139 | 50cc |
About Universal Parts
Universal Parts is a leading supplier of scooter and powersports components, offering a broad catalog of OEM-compatible replacement parts trusted by dealers and enthusiasts alike.





