Yamaha - Cover, Water Pump Housing - Cooling System - 60X-44312-00-00

Overview

This is one of those small parts you don’t think about until you’re already deep into a water pump job. The housing cover helps seal everything up tight so your impeller can do its job and keep water moving the way it should. When it’s worn or warped, you’ll start seeing cooling issues creep in, especially after long runs. Swapping it out while you’re in there just saves headaches later.

Key Features

• Precise OEM Fitment – Matches factory specs so it seals properly without guesswork.
• Durable Composite Construction – Built to handle constant water flow and engine heat cycles.
• Critical Seal Surface – Provides a smooth contact point for proper impeller housing operation.
• Maintenance-Friendly Design – Simple to replace during routine water pump service intervals.

Engine & Boat Compatibility

Yamaha Outboard Models – Various 2-stroke and 4-stroke applications (verify by part number)

FAQ

Q: How do I know if this cover needs to be replaced?
A: If you see scoring, warping, or uneven wear on the surface, it’s time. It can affect water pressure and cooling efficiency.

Q: Should I replace this every time I change the impeller?
A: Not always, but many techs do if there’s any visible wear since you’re already in the pump assembly.

Q: Can a bad housing cover cause overheating?
A: Yes, even slight imperfections can reduce water flow and lead to higher engine temps over time.

Q: Any tips during installation?
A: Make sure the surface is clean and aligned properly before tightening. Even pressure across the cover is key.

Q: How does this hold up in saltwater use?
A: It does well, but salt buildup and debris can wear it faster, so regular inspection is important.