Blue Line Fuel Valve (3 Port); GY6, 139QMB
Blue Line Fuel Valve (3 Port); GY6, 139QMB
$17.87
10 in stock
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Product Details
Description
Blue Line 3-Port Frame Mount Fuel Petcock Valve: GY6/QMB
Key Details
- Original Parts For Scooters SKU: 164-288
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.
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Size: 50cc, 80cc, GY6
- Engine Code: 139QMB
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 | 0.3 lbs |
|---|---|
| Dimensions | 3 × 2 × 1.5 in |
| Condition | New |
|---|
Reliable Flow: Blue Line Vacuum-Operated 3-Port Fuel Valve
Restore your engine's fuel delivery system with the Blue Line 3-Port Fuel Valve. Engineered as a direct OEM replacement for GY6 139QMB and 157QMJ engines, the vacuum-actuated petcock ensures that fuel only flows when the engine is running. This critical safety feature prevents carburetor flooding and engine oil contamination, making it a vital component for the longevity of your 50cc or 150cc scooter.
Technical Performance Features
- Vacuum-Actuated Security: Automatically shuts off fuel flow when the engine stops, protecting your intake system from overflow and "hydro-locking."
- External Frame Mount: Specifically designed for scooters with frame-mounted fuel petcocks where the valve is secured via a single 6.5mm bolt hole.
- High-Flow Internal Diaphragm: Features a durable, fuel-resistant internal diaphragm that provides consistent pressure to the carburetor even under high-load conditions.
- OEM Equivalent Quality: Part of the Blue Line series, offering factory-standard fitment and performance at a fraction of the cost of boutique brand parts.
Comprehensive Fitment Guide
This 3-port valve is a universal fit for almost all Chinese-manufactured scooters with engine codes containing "QM" or "FM":
| Engine Family | Compatible Codes |
|---|---|
| 50cc / 80cc (QMB) | 139QMB, 139QMA, 1P39QMB, YN139QMB, BN139QMB, 147QMD |
| 125cc / 150cc (QMJ) | 157QMJ, 152QMI, 161QMK, JJ157QMJ, BN157QMJ, BN161QMK-A |
| Popular Brands | TaoTao, Wolf, Icebear, Peace Sports, ZNEN, Bintelli, Jonway |
Technical Specifications
- Port Count: 3 Ports (Fuel In, Fuel Out, Vacuum)
- Mounting: 6.5mm Bolt Hole
- Material: Corrosion-Resistant Zinc Alloy
- Cross-Ref: Original Parts For Scooters SKU 164-288
Mechanic's Note: If your scooter won't start or is leaking fuel into the airbox, a failed vacuum diaphragm is often the culprit.
Installation Tip: Before installing, verify that your vacuum lines are crack-free; a vacuum leak will prevent this valve from opening.
Fitment Note: If your scooter has 4 ports, you need SKU 164-84 instead.
SKU: 1300-1156
Vendor: BLUE LINE
