New item 03/31/12! Onan carburetor & fuel pump diaphragm/gasket kit for all late production BF and all B43M and B48M models thru 1985. These 226/446/448 model tractors have the fuel pump integral to the carburetor. Replaces Case/Ingersoll p/n C24665. See our part number MIC181-386 to order the same part sourced directly from the manufacturer at a much lower cost!