Yamaha - Water Pump Cartridge Insert - Cooling System Component - 689-W4432-01-00

Overview

When you’re rebuilding a water pump, the cartridge insert is one of those pieces you don’t overlook. It’s what helps guide water flow through the pump housing and keeps everything moving the way it should. If it’s worn or scored, you’ll lose efficiency even with a new impeller. Swapping it out during service keeps your cooling system working like it’s supposed to.

Key Features

• Directed Water Flow Design – Guides water efficiently through the pump for proper cooling.
• Genuine Yamaha Fitment – Matches original specifications for correct alignment inside the housing.
• Supports Pump Efficiency – Works with the impeller to maintain consistent water circulation.
• Durable Construction – Built to handle constant water exposure and rotational forces.
• Essential Rebuild Component – Ideal for replacing worn inserts during full pump service.

Engine & Boat Compatibility

Compatible with select Yamaha outboards using this water pump cartridge insert. Verify fitment based on your specific engine model.

FAQ

Q: Do I need to replace this every time I change the impeller?
A: Not always, but if there’s any wear or scoring, it’s best to replace it.

Q: What happens if this insert is worn?
A: You can lose water pressure and reduce cooling efficiency even with a new impeller.

Q: Is this included in all water pump kits?
A: Some kits include it, but not all—always check your kit contents.

Q: Is installation complicated?
A: It’s straightforward during a pump rebuild, just make sure it seats properly.

Q: Does saltwater affect this part?
A: Yes, over time it can cause wear or buildup that affects performance.