Yamaha - Cartridge Outer Plate - Water Pump Component - F2.5 - 69M-G4323-00-00

Overview

On smaller Yamaha outboards like the F2.5, the cooling system is simple but critical. This cartridge outer plate is part of the water pump assembly, helping maintain proper water flow through the engine. It works alongside the impeller and housing to keep everything sealed and moving coolant efficiently. When it wears down or gets scored, you can lose pump efficiency, which leads to overheating. It’s a small part, but replacing it during service helps keep your cooling system working like it should.

Key Features

• Water Pump Component – Part of the cooling system cartridge that supports proper water circulation.
• Maintains Pump Efficiency – Helps ensure consistent coolant flow through the engine.
• OEM Yamaha Fitment – Built to factory specs for correct alignment and sealing.
• Service Replacement Part – Commonly replaced during water pump rebuilds or maintenance.

Engine & Boat Compatibility

• F2.5

FAQ

Q: What does the cartridge outer plate do?
A: It forms part of the water pump housing, helping guide and seal water flow through the system.

Q: When should this part be replaced?
A: It’s typically replaced during a water pump rebuild or when wear is visible.

Q: What happens if it’s worn out?
A: Reduced cooling efficiency, which can lead to overheating.

Q: Is this replaced with the impeller?
A: Yes, it’s often replaced at the same time as the impeller and related components.

Q: Is installation difficult?
A: It’s straightforward if you’re already servicing the water pump.

• Engine Application
  • F2.5