The Universal Parts QMB139 Type-4 19mm carburetor is a direct-fit replacement for GY6 50cc 4-stroke scooter engines. Featuring a built-in accelerator pump and vacuum port, this carb delivers crisp throttle response, reliable cold starts, and emissions-compliant performance right out of the box. Whether you’re restoring a tired scooter or upgrading a worn-out carb, this is a proven, plug-and-play solution. SKU: 151-233.
Key Features
19mm precision venturi for optimized fuel-air mixture
Built-in accelerator pump for responsive throttle
Vacuum port for emissions canister compatibility
Electric choke with 2-pin male plug connector
EPA-regulated, emissions-ready design
38mm air filter mount (standard fitment)
Technical Specifications
Intake Inner Diameter: 19mm
Air Filter Mount: 38mm
Choke Type: Electric (2-pin male plug)
Engine Type: GY6 / QMB139 50cc 4-stroke
Weight: 1.5 lbs
Dimensions: 7″ L x 6″ W x 6″ H
Compatibility
Engine
Displacement
GY6 / QMB139
50cc
About Universal Parts
Universal Parts is a leading supplier of scooter and powersports components, offering a broad catalog of OEM-compatible replacement parts trusted by dealers and enthusiasts alike.
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