Water Pump Impeller Repair Kit – Fits Mercury/Mariner 15 HP Outboards (Replaces 8M0070780, 42038Q3) family-yamaha-15mlhy Tighten the mounting bolts to

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

can extend the valve's lifespan significantly

Apply marine grease to the drive shaft splines and reinstall the lower unit

It features a dorsal fin design and is constructed from high-strength

7L COMPETITION SKI 4-Stroke 1987-1995 87-91019A2 GM 350 V-8 MerCruiser 5

Water Pump Impeller Repair Kit – Fits Mercury/Mariner 15 HP Outboards (Replaces 8M0070780, 42038Q3) family-yamaha-15mlhy Tighten the mounting bolts toWater 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