Mercury Marine 14360A78 Fuel Pump Kit Assembly

The Mercury Marine 14360A78 Fuel Pump Kit is a genuine OEM replacement assembly designed for Mercury and Mariner 2-stroke outboard engines ranging from 30 to 300 horsepower. This kit supersedes previous part numbers 14360A71, 14360A43, 14360A41, 14360A14, 14360A15, and 14360A16. It restores consistent fuel pressure and flow for carbureted and DFI applications. The kit contains a mechanical diaphragm fuel pump with aluminum and composite housing, mounting gaskets, fuel line tubing, check valve, hose connectors, and mounting screws. The pump operates on crankcase pulse pressure, delivering fuel at approximately 5-7 PSI to the carburetors. Housing material is corrosion-resistant aluminum alloy with ethanol-compatible diaphragms and seals. Inlet and outlet ports accept 1/4 inch barbed fittings. The assembly is calibrated for marine environments and ethanol-blended fuels.