FUEL PUMP KIT 432962

Function and Technical Context

The fuel pump kit is the component responsible for transferring fuel from the tank to the carburetor or fuel injection system of the outboard motor, remaining within the fuel supply circuit. This kit includes the replacement parts necessary to restore the pump to proper working order: diaphragms, gaskets, valves, and other wear-prone components. A pump in poor condition causes an irregular fuel supply, resulting in a loss of power, unstable idle, or even the inability to start the engine. Part number 432962 is compatible with Johnson and Evinrude engines in the 20 to 50 hp range, as well as with Mercury/Mariner/MerCruiser engines under the equivalent part number 878964 and with OMC engines under part numbers 0432962 and 432962.

When should this part be replaced?

The most common symptoms of a worn-out fuel pump are difficult cold starts, engine speed drops under load, engine stalling at full throttle, and visible fuel leaks on the pump housing. The kit’s diaphragms and internal seals dry out and crack over time due to the effects of hydrocarbons and temperature cycles, so it is recommended to inspect them during every seasonal maintenance and replace them preventively every two or three seasons of regular use. Replacing the entire kit before a failure occurs prevents you from being stranded on the water and avoids more costly repairs to the fuel system.

Compatible Johnson/Evinrude Engines

Equivalent Manufacturer Part Numbers