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Blue Line Carburetor (CVK,19mm); 139QMB

Blue Line Carburetor (CVK,19mm); 139QMB

$60.32

Part Number: 718046945567 SKU: 1100-1361 Category: Tag:

10 in stock

Part Number: 718046945567 SKU: 1100-1361 Category: Tag:

*Note: Free shipping to U.S. mainland (excludes AK, HI, and territories)
Orders placed by 1pm EST on weekdays ship the same day.

Product Details

Description

Blue Line Carburetor – CVK,19mm – 139QMB

Key Details

  • PD19-J SKU 151-29

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
  • Engine Code: 139QMB
  • Fitment Notes: Auto Transmission

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 3 lbs
Dimensions 5 × 6 × 4 in
Condition New
Upgrade your 139QMB-powered 50cc scooter's fuel delivery with this Blue Line 19mm CVK replacement carburetor. The larger-than-stock 19mm venturi improves airflow and fuel atomization, while the mechanical float-bowl accelerator pump eliminates the bog and hesitation common when opening the throttle quickly. Fitted with an #85 main jet and electric choke. A direct-fit replacement for all 139QMB Chinese engines.
  • Venturi: 19mm
  • Electric choke: 2-pin male plug style
  • Accelerator pump: mechanical float-bowl type
  • Airbox side: ID 29mm / OD 38mm
  • Engine side: ID 19mm / OD 28mm
  • Main jet: #85 (4mm thread PB style)
  • Pilot jet: #35 (6mm thread CV style)
  • Needle: non-adjustable GY50 A4
  • Compatible jets — main: JETKH1 | pilot: CV style | idle: #34
Compatible Engine Codes:
  • 139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2, BD1P39QMB, BN139QMB, 147QMD
  • Other QMA and QMB variants — if your engine code includes "QM" or "FM" this carb is compatible
California Prop 65 Warning: www.p65warnings.ca.gov
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