Water Pump Impeller Repair Kit – Fits Mercury/Mariner 15 HP Outboards (Replaces 8M0070780, 42038Q3) family-yamaha-15mlhy can extend the valve's lifespan

can extend the valve's lifespan significantly

Tighten the mounting bolts to the manufacturer's specified torque in the correct sequence

25 inches Weight 0

Close the engine's seacock to prevent water from entering the exhaust system

Allow the gear lube to drain completely

Water Pump Impeller Repair Kit – Fits Mercury/Mariner 15 HP Outboards (Replaces 8M0070780, 42038Q3) family-yamaha-15mlhy can extend the valve's lifespanWater Pump Impeller Repair Kit Fits Mercury Mariner 15 HP Outboards (Replaces 8M0070780, 42038Q3) This water pump impeller repair kit is designed for Mercury and Mariner 15 HP two stroke outboard motors. It provides all the necessary components to replace a worn or damaged impeller in the lower unit water pump assembly, restoring cooling system performance and preventing engine overheating. This kit is a direct replacement for Mercury part numbers