For sale is a used Zenith 1-barrel updraft model 63M2E10 carburetor. Tag number 9255, labeled as fitting 1939-1948 Gray Marine models 4-40, 4-52, 6-51, replacement number 11990. Unit will fit other years and or applications. Measures 2 3/4” center to center mounting with flame arrestor and adjustable jet. Rebuildable core, all shafts move freely, clean and complete. Thanks for looking.