Yamaha – Water Pump Repair Kit | 6P2-W0078-00-00

Overview

If you run a big Yamaha four stroke long enough, the water pump becomes one of those service items you stay ahead of. The Yamaha Water Pump Repair Kit 6P2-W0078-00-00 includes the core parts needed to rebuild the pump and keep water moving through the engine the way it should. Heat, sand, and everyday running slowly wear down impellers and seals, especially on boats that spend time in saltwater. Installing a full kit during regular service helps keep cooling performance steady when the motor is working hard offshore or running long days on the water.

Key Features

• Complete Pump Service Kit – Includes the primary components needed to rebuild the water pump assembly.

• Restores Cooling Performance – Helps maintain proper water circulation through the engine to prevent overheating under load.

• Genuine Yamaha Components – Built to Yamaha factory specifications for proper fit and dependable durability.

• Routine Maintenance Solution – Designed for scheduled pump service on high horsepower Yamaha four stroke outboards.

Engine & Boat Compatibility

• F225 – 2007-2009
• F250 – 2006-Current
• F250B – 2008-2009
• LF250 – 2006-Current
• LZ300 – 2006
• Z300 – 2006

FAQ

Q: How often should the water pump be serviced on these engines?
A: Many Yamaha technicians recommend inspecting or servicing the pump every two to three seasons or around two hundred hours, depending on how the boat is used.

Q: What are signs the water pump components may be wearing out?
A: Weak water flow from the telltale, higher running temperatures, or overheating warnings are common indicators the impeller or internal parts may be worn.

Q: Should the entire kit be installed instead of replacing just the impeller?
A: In most cases, installing a full repair kit ensures all the wear components are replaced together, helping the pump perform properly.

Q: Does running in saltwater affect pump life?
A: Yes. Salt, sand, and debris moving through the cooling passages can shorten the life of the impeller and internal pump surfaces.

Q: Is this repair typically done during lower unit service?
A: It often is. Many technicians service the pump while the lower unit is already removed for gear oil changes or seasonal maintenance.