Yamaha - Cartridge Outer Plate - Water Pump Component - 689-44323-03-00

Overview

The cartridge outer plate is a key component within your Yamaha outboard’s water pump assembly, designed to help support and protect the internal pump cartridge. It plays an important role in maintaining proper alignment and sealing of the water pump components, ensuring efficient water flow through the cooling system. A worn or damaged outer plate can reduce pump efficiency and lead to cooling issues. Replacing it helps maintain proper water circulation and protects your engine from overheating.

Key Features

• Water Pump Support Component – Helps secure and align internal pump cartridge parts.
• Maintains Cooling Efficiency – Supports proper water flow through the system.
• OEM Yamaha Construction – Built to factory specifications for durability and precise fit.
• Service Replacement Part – Commonly replaced during water pump maintenance or rebuilds.

Engine & Boat Compatibility

Compatible with Yamaha outboards using this component within the water pump / cooling system assembly (commonly found in small to mid-range outboards).

FAQ

Q: What does a cartridge outer plate do?
A: It supports the water pump cartridge and helps maintain proper alignment and sealing.

Q: When should this part be replaced?
A: During water pump service or if the plate shows wear, corrosion, or damage.

Q: Can a worn plate affect cooling performance?
A: Yes, it can reduce pump efficiency and lead to overheating issues.

Q: Is this part included in water pump kits?
A: It is often included in complete water pump repair kits.

Q: Is installation difficult?
A: It is typically replaced during water pump service and requires access to the lower unit.