Yamaha - Water Pump Housing - Cooling System Component - 63V-44301-00-00

Overview

The water pump housing is what holds everything together in your cooling system, and if it’s worn or warped, you’ll lose efficiency fast. It’s where the impeller spins and pushes water through the engine, so any damage here can affect water pressure and cooling performance. This Yamaha housing is built to restore proper fit and flow, keeping your motor running at the right temperature. It’s one of those parts you replace during a full water pump service to keep things dependable.

Key Features

• Impeller Housing Support – Provides the structure that allows the impeller to operate correctly.

• Maintains Cooling Efficiency – Helps ensure proper water flow through the engine.

• OEM Yamaha Fitment – Built to factory specifications for accurate installation and sealing.

• Durable Marine Construction – Designed to handle heat, pressure, and continuous water exposure.

Engine & Boat Compatibility

• F8

• T8 (2001 & newer)

• F6 (2008 & older)

• F9.9 / T9.9 (2005 & newer)

• F15 (1998 & newer)

• 9.9 / 15 (1996, 2-Stroke)

FAQ

Q: What happens if the water pump housing is worn?
A: It can reduce water pressure and lead to overheating issues.

Q: Should I replace this during a water pump rebuild?
A: Yes, especially if there are signs of wear or scoring inside the housing.

Q: Can a damaged housing affect the impeller?
A: Yes, it can shorten impeller life and reduce efficiency.

Q: Does this part impact cooling at idle?
A: Absolutely, proper housing condition is key for low-speed cooling performance.

• Engine Application
  • F6 (2008 & older)
  • F8
  • F9.9/T9.9 (2005 & newer)
  • F15 (1998 & newer)
  • T8 (2001 & newer)
  • 9.9/15 (1996 2-stroke)