Custom Builds and Performance Parts
  • Universal Parts QMB139 20mm Carburetor Diaphragm


    Universal Parts carburetor diaphragm for 20mm black top carburetors. Please see related items for the compatible carburetor.

    • Used in 20mm carburetors, please see Related Items for corresponding carburetor
    • Outer diameter of slide: 17.9mm
    • Outer diameter of rubber: 52.5mm
    • QMB139 50cc/49cc , Various unlisted makes/models