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Will this fit my 50 HP Mercury 4-Stroke
Always follow your engine manufacturer's service manual for specific instructions
Install the new gasket and replace the pump cover plate
In severe cases
Carefully disconnect the wire retainers and electrical connectors inside the boat
Fuel Pump Diaphragm Kit – Fits Mercury Mariner 70-115 HP (Replaces 42909A1, 42909A2, 42909A3, 42909A4) OMC Will this fit my 50Product Details This Fuel Pump Diaphragm Kit is designed for Mercury Mariner 70115 HP outboard engines, specifically fitting 3 cylinder (70, 75, 80, 90 HP) and 4 cylinder (100, 115 HP) models manufactured between 19831993. It serves as a direct cross reference for Mercury part numbers 42909A1, 42909A2, 42909A3, and 42909A4, and interchanges with Sierra 18 7818 1, Mallory 9 37754, and GLM 40280. Direct replacement fit for straightforward installation.
