• Carburetor PD18J with Electric Choke for 4-Stroke GY6 49cc 50cc Chinese Scooter 139QMB - goofitmoto
  • Carburetor PD18J with Electric Choke for 4-Stroke GY6 49cc 50cc Chinese Scooter 139QMB - goofitmoto
  • Carburetor PD18J with Electric Choke for 4-Stroke GY6 49cc 50cc Chinese Scooter 139QMB - goofitmoto
  • Carburetor PD18J with Electric Choke for 4-Stroke GY6 49cc 50cc Chinese Scooter 139QMB - goofitmoto
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Carburetor PD18 with Electric Choke for 4-Stroke GY6 49cc 50cc Chinese Scooter 139QMB

Carburetor PD18 with Electric Choke for 4-Stroke GY6 49cc 50cc Chinese Scooter 139QMB

$30.99
$30.99
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Product Overview

Restore smooth fuel delivery and reliable engine performance with this PD18 18mm carburetor, designed for selected 4-stroke GY6 49cc / 50cc engines.

This replacement carburetor is suitable for many compatible Chinese scooters and mopeds using the 139QMB engine platform, including common applications from brands such as TaoTao, Jonway, and Baja.

Equipped with a 2-pin male plug electric choke, this carburetor helps deliver a proper air-fuel mixture for stable idle, smoother throttle response, and improved acceleration. It is also commonly used on compatible 100cc big bore setups when the intake size, air filter size, and choke connector match.

Product Compatibility

Brand / Platform Model Engine / HP / CC Year Range Notes
GY6 Platform Chinese Scooter / Moped 49cc / 50cc Please verify Match by intake size, air filter size, and choke plug
Engine Code 139QMB 49cc / 50cc Please verify Common GY6 4-stroke scooter engine
TaoTao Scooter / Moped 49cc / 50cc Please verify Verify original carburetor size before purchase
Jonway Scooter / Moped 49cc / 50cc Please verify Verify original carburetor size before purchase
Baja Scooter / Moped 49cc / 50cc Please verify Verify original carburetor size before purchase
GY6 Big Bore Setup Compatible modified engines 100cc Please verify Match by intake, jetting, and air filter setup

Specifications

Specification Details
Part Type Carburetor
Carburetor Model PD18
Carburetor Size 18 mm
Engine Type 4-Stroke GY6
Engine Compatibility 49cc / 50cc
Compatible Engine Code 139QMB
Big Bore Compatibility Selected 100cc big bore setups
Choke Type Electric Choke
Choke Plug Style 2-pin male plug
Intake Manifold Inner Diameter 18 mm / 0.70"
Intake Manifold Outer Diameter 28 mm / 1.10"
Main Jet Size #75
Air Filter Intake Inner Diameter 35 mm / 1.37"
Air Filter Intake Outer Diameter 39 mm / 1.53"
Fitment Method Match by intake size, air filter size, choke plug, and original carburetor layout
Condition 100% New Aftermarket

Key Features

  • PD18 18mm Carburetor Design – Built for selected GY6 49cc / 50cc 4-stroke engines
  • 139QMB Engine Compatibility – Suitable for many common Chinese scooter and moped applications
  • 2-Pin Electric Choke – Designed for vehicles using a 2-pin male plug electric choke setup
  • #75 Main Jet – Common jet size for compatible 50cc and selected big bore configurations
  • Stable Air-Fuel Mixing – Helps support smoother idle, throttle response, and acceleration
  • Brand New Aftermarket Replacement – Practical replacement for worn, clogged, or poorly performing carburetors

Package Includes

1 × PD18 18mm Carburetor with 2-Pin Electric Choke

Fitment Note

Please confirm your engine type, intake manifold diameter, air filter intake size, choke plug style, jet size, and original carburetor appearance before ordering.

This carburetor is intended for selected 4-stroke GY6 49cc / 50cc 139QMB engines and some compatible 100cc big bore setups. Compatibility may vary by scooter brand, intake manifold, air box setup, throttle cable, choke connector, and fuel line layout.

If you are unsure about compatibility, contact us with your vehicle model, engine size, original carburetor photos, intake measurement, air filter measurement, and choke plug photos before purchase.

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Fitment FAQ

Will this part fit my specific model and year?

This carburetor is intended for Brand / Platform; Engine / HP / CC. Key physical/spec details from the product data include Verify original carburetor size before purchase: GY6 Big Bore Setup, GY6 Big Bore Setup, Carburetor Size: 18 mm. 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 PD18/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 Verify original carburetor size before purchase: GY6 Big Bore Setup, GY6 Big Bore Setup, Carburetor Size: 18 mm. If any connector, mounting point, size, or year detail is different, confirm fitment before installation.