Yamaha - Water Pump Repair Kit - Cooling System Component - 689-W0078-A4-00

Overview

The water pump repair kit is a critical maintenance solution designed to restore proper cooling performance in your Yamaha outboard. The water pump circulates water through the engine to regulate temperature and prevent overheating. Over time, internal components such as the impeller, gaskets, and seals can wear out, reducing water flow and cooling efficiency. This complete kit provides the essential parts needed to rebuild the water pump and maintain consistent engine cooling, helping protect your engine from damage and ensuring reliable operation on the water.

Key Features

• Complete Water Pump Service Kit – Includes essential components to restore cooling system performance.
• Prevents Overheating – Maintains proper water circulation through the engine.
• OEM Yamaha Construction – Built to factory specifications for durability and precise fit.
• Reliable Marine Performance – Designed to withstand harsh marine conditions and continuous use.

Engine & Boat Compatibility

Compatible with Yamaha outboards using this kit within the cooling system / water pump assembly.

FAQ

Q: What does a water pump repair kit do?
A: It restores the components that circulate cooling water through the engine.

Q: When should this kit be replaced?
A: During routine maintenance or when cooling performance decreases.

Q: What are signs of a failing water pump?
A: Weak water stream, overheating, or reduced cooling efficiency.

Q: Is this a complete kit?
A: Yes, it includes the key parts needed to service the water pump.

Q: Is installation difficult?
A: It requires removing the lower unit and is typically done during maintenance.

• Supersessions
  689-W0078-04-00