Universal Parts QMB139 Non Emissions Head – 69mm Valves
Universal Parts QMB139 Non Emissions Head – 69mm Valves
$59.17
10 in stock
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Product Details
Description
Universal Parts QMB139 Non Emissions Head – 69mm Valves
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 Size: 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 QMB139 scooters?
A: This SKU is listed with QMB139 engine-size fitment. Confirm exact model, year, and part style before ordering.
Additional information
| Weight | 2.8 lbs |
|---|---|
| Dimensions | 7 × 6.5 × 4 in |
Replace a damaged or emissions-restrictive head with the Universal Parts QMB139 Non-Emissions Cylinder Head (SKU 151-249). Fully assembled cast aluminum head — 4-bolt deck pattern, machined valve seats, two valve spring/retainer assemblies (intake and exhaust) installed, spark plug boss, finned cooling fins, cam chain tunnel, and both port flanges machined. Oval 2-bolt intake port flange (17mm ID), round exhaust port flange (18mm ID). 70.5mm diagonal valve center-to-center spacing, 69mm valve length. Non-emissions style — no secondary air injection port. Ready to install.
- SKU: 151-249
- Brand: Universal Parts
- Engine Type: 139QMB / 139QMA 4-stroke 50cc / 80cc
- Style: Non-emissions (no secondary air port)
- Condition: Fully assembled (valves, springs, retainers installed)
- Valve Length: 69mm
- Valve Center-to-Center Spacing: 70.5mm
- Intake Port Diameter: 17mm
- Exhaust Port Diameter: 18mm
- Deck Pattern: 4-bolt
Compatible Engine Codes
139QMB-based 50cc / 80cc engines:
| Engine Codes |
|---|
| 139QMA Â Â 139QMB Â Â 1P39QMB Â Â 1P39QMA-2 |
| YN139QMB Â Â JJ1P39QMB Â Â 139FMA-2 Â Â BD1P39QMB |
| BN139QMB   147QMD   Other QMA models   Other QMB models |
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Intended for off-road use only. Not intended for use on public roads or land.
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