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Carburetor PD18J Kit for GY6 50cc 49cc 4-Stroke Engine | 139QMB 139QMA Scooter
Carburetor PD18J Kit for GY6 50cc 49cc 4-Stroke Engine | 139QMB 139QMA Scooter
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Complete PD18 Carburetor & Air Filter Kit for GY6 50cc 4-Stroke Engines
Restore your scooter's legendary reliability. This high-quality PD18 Carburetor Kit is a precision-engineered replacement for GY6 49cc and 50cc 4-stroke engines (139QMB/139QMA). If your moped is struggling to start, stalling at lights, or losing power, this kit is the most effective way to refresh your fuel system and increase overall engine performance.
The kit includes a high-flow foam air filter designed to trap dust and sand particles before they reach the cylinder. By ensuring a steady supply of clean, filtered air, this carburetor provides the perfect air-fuel mixture for vigorous acceleration and consistent top speeds.
Product Compatibility
- Engine Type: 4-Stroke GY6 49cc / 50cc (139QMB, 139QMA)
- Vehicle Types: Mopeds, Scooters, ATVs, and Mini-Quads
- Compatible Brands: Fits most Chinese-made brands like TaoTao, Peace, Roketa, Sunl, Jonway, and more.
Key Technical Specifications:
- Carburetor Intake Inner Diameter: 18mm (0.71")
- Air Filter Mount Outer Diameter: 40mm (1.57")
- Air Filter Material: High-density Foam and Rubber for superior filtration.
- Condition: 100% Brand New with high-durability internal components.
Why Choose This PD18 Kit?
- Instant Performance Boost: Specifically tuned to provide an excellent fuel-to-air ratio, leading to a more responsive throttle and stable idling.
- Superior Filtration: The included foam air filter ensures that only sufficient and clean air enters the engine, protecting your piston and rings from premature wear caused by debris.
- Durable Construction: Made from high-quality alloy materials that resist corrosion and heat, maintaining stable performance in various riding conditions.
- Easy Installation: Designed as a perfect match for the original equipment, allowing for a straightforward "bolt-on" installation.
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Fitment FAQ
Will this part fit my specific model and year?
This carburetor is intended for Engine Type: 4-Stroke GY6 49cc / 50cc (139QMB, 139QMA); Vehicle Types: Mopeds, Scooters, ATVs, and Mini-Quads; Compatible Brands: Fits most Chinese-made brands like TaoTao, Peace, Roketa, Sunl, Jonway, and more.. Key physical/spec details from the product data include Carburetor Intake Inner Diameter: 18mm (0.71"), Air Filter Mount Outer Diameter: 40mm (1.57"), 50cc. Use the compatibility table and product photos together before ordering.
Do I need to match the OEM part number?
Yes. If your original part has a stamped OEM or manufacturer number, match that number first before ordering. For this carburetor, also compare the intake diameter, outlet diameter, flange/bolt spacing, choke type, throttle-cable connection, fuel/vacuum ports, and engine displacement. This is especially important for GY6/Roketa/TaoTao PD18J/GY6 models because similar model names can use different parts by year or trim.
What models or situations does this part not fit?
Do not order this carburetor for machines outside the listed compatibility, or for units with different intake sizes, cable/choke styles, flange spacing, jetting requirements, or fuel/vacuum port layouts. Do not rely only on the model name or engine size.
What should I check before ordering?
Before ordering, compare your original part with the photos and check the intake diameter, outlet diameter, flange/bolt spacing, choke type, throttle-cable connection, fuel/vacuum ports, and engine displacement. Recheck listed specs such as Carburetor Intake Inner Diameter: 18mm (0.71"), Air Filter Mount Outer Diameter: 40mm (1.57"), 50cc. If any connector, mounting point, size, or year detail is different, confirm fitment before installation.