Blue Line 19mm CVK Carburetor w/ Vacuum Port: 139QMB
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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.
Shipping information
Orders are prepared as quickly as possible. Delivery times and shipping costs are calculated at checkout based on the destination and items ordered.
Returns & warranty
Please verify fitment and part number before ordering. Contact Thrifty Scooters promptly if an item arrives damaged or incorrect.