Yamaha - Cartridge Insert - Water Pump Housing Component - 6E5-44322-00-00

Overview

When you’re rebuilding a water pump, the cartridge insert is one of those parts that can’t be overlooked. I’ve pulled apart pumps where the insert was worn or scored, and no matter how new the impeller was, performance still suffered. This piece helps guide water flow and supports the pump’s internal components. When it’s in good shape, you get strong, steady cooling like the motor was designed for.

Key Features

• Water Pump Flow Support – Helps direct and stabilize water movement through the pump housing.
• Impeller Surface Protection – Provides a smooth surface for proper impeller operation.
• Durable Wear-Resistant Material – Built to handle friction and continuous water exposure.
• Consistent Cooling Performance – Supports reliable water circulation under varying conditions.
• Exact Yamaha Fitment – Matches factory specifications for proper installation and alignment.

Engine & Boat Compatibility

Designed for Yamaha outboard engines utilizing water pump systems, including models similar to F115 and related setups. Commonly used across Yamaha outboards in recreational and commercial marine applications. Suitable for freshwater and saltwater environments where dependable cooling performance is essential.

FAQ

Q: What are signs this cartridge insert is worn?
A: Reduced water pressure, overheating, or visible scoring inside the pump housing are common signs.

Q: Should I replace this when installing a new impeller?
A: Yes, it’s best practice to inspect and replace worn components for full performance.

Q: Any tips for installing this insert?
A: Make sure the housing is clean and the insert is seated properly before assembly.

Q: How does debris affect this part?
A: Sand and debris can score the surface, reducing pump efficiency over time.

Q: Can a worn insert affect cooling performance?
A: Yes, it can reduce water flow and lead to overheating if not addressed.