Water Pump Repair Kit – Fits Mercury/Mariner 2-Cycle 30-70 HP Outboards (Replaces 77177A3) family-yamaha-115txrd It's wise to inspect the

It's wise to inspect the thermostat during your routine yearly water pump service

Clean Surfaces: Thoroughly clean the mating surfaces of the pump housing and wear plate

Ensure the engine is off and the fuel supply is shut off at the fuel tank valve

the housing gasket

Test Operation: Reconnect the spark plug wires

Water Pump Repair Kit – Fits Mercury/Mariner 2-Cycle 30-70 HP Outboards (Replaces 77177A3) family-yamaha-115txrd It's wise to inspect theWater Pump Repair Kit Fits Mercury Mariner 2 Cycle 30 70 HP Outboards (Replaces 77177A3) This water pump repair kit is designed for Mercury Mariner 2 Cycle 30 70 HP outboards manufactured between 1977 and 1997. It provides a complete solution for servicing and restoring your engine's cooling system to factory fresh performance. This kit is a direct replacement for Mercury Mariner part numbers 77177A3 and 46 77177A3, as well as aftermarket parts Sierra