Universal Parts Carburetor QMB139 50cc 4-stroke – 20mm
Universal Parts Carburetor QMB139 50cc 4-stroke – 20mm
$61.70
10 in stock
*Note: Free shipping to U.S. mainland (excludes AK, HI, and territories)
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Product Details
Description
Universal Parts Carburetor QMB139 50cc 4-stroke – 20mm
Key Details
- PD20J
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Size: 50cc, QMB139, 4-Stroke
- 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 | 1.9 lbs |
|---|---|
| Dimensions | 6 × 6 × 6 in |
| Condition | New |
|---|
The Universal Parts PD20J is a Type-2 carburetor with a 20mm intake designed for 50cc 4-stroke 139QMB engines. It comes equipped with an electric choke and accelerator pump, making it the go-to upgrade for QMB139 scooters running a 70cc+ big bore kit or engines that came stock with larger displacement.
Key Features
- Electric choke (2-pin male plug)
- Accelerator pump for improved throttle response
- 20mm intake bore for increased airflow
- Main jet: #78 | Idle jet: #33
- Inner Diameter (intake): 20mm
- Outer Diameter (air filter mount): 38mm
- Outer Diameter (intake side): 28mm
- Electric Choke plug: 2-pin, male
- Main Jet Size: #78
- Idle Jet Size: #33
Fits QMB139 50cc 4-stroke engines, including the following makes and models:
| Make | Model |
|---|---|
| Baja | SC50, SC50-P |
| Baotian | BT50QT-11 |
| Boss | 50cc QMB139 |
| CFMoto | 50cc QMB139 |
| Kymco | 50cc QMB139 |
| Lifan | 50cc QMB139 |
| Panterra | Freedom 50cc, Fusion 50cc, Retro 50cc |
| Qingqi | QM50QT-4G, QM50QT-6V |
| Schwinn | Hope 50, Laguna 50 |
| SUNL | 50cc QMB139 |
| Tank | 50cc QMB139 |
| Vento | 50cc QMB139 |
| Verucci | 50cc QMB139 |
| Wildfire | 50cc QMB139 |
| X-Treme | 50cc QMB139 |
| Various | Unlisted QMB139 makes/models |
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Note: This carburetor is typically used on QMB139 engines with 70cc+ displacement or on scooters with a big bore kit installed.
