Yamaha - Cartridge Outer Plate - Water Pump Component - 689-44323-43-00

Overview

The cartridge outer plate is an essential component within your Yamaha outboard’s water pump assembly, helping support and stabilize the pump cartridge while maintaining proper alignment. It plays a key role in ensuring efficient water circulation through the cooling system by working alongside the impeller and internal pump components. Built to OEM specifications, this outer plate provides durability and resistance to wear in harsh marine environments. If worn or damaged, it can reduce pump efficiency and compromise cooling performance. Replacing it helps maintain proper water flow and protects your engine from overheating.

Key Features

• Water Pump Support Component – Helps secure and align internal pump cartridge parts.
• Maintains Cooling Efficiency – Supports consistent 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.

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