Yamaha - Water Pump Housing - Cooling System Component - 6H3-44311-00-00

Overview

The Yamaha Water Pump Housing | 6H3-44311-00-00 is one of those parts that keeps your cooling system working the way it should without much attention—until it wears out. When the housing gets scored, warped, or cracked, you’ll start seeing weak water flow or overheating issues pretty quickly. It’s what holds the impeller in place and directs water through the engine, so everything depends on it staying solid. If you’re rebuilding the water pump, this is one of those parts you don’t skip.

Key Features

• Controlled Water Flow Channeling – Directs cooling water through the engine to maintain proper operating temperature.

• OEM Fit Precision – Built to Yamaha specifications for proper alignment and secure installation.

• Impeller Support Structure – Holds the impeller in position for efficient and consistent water movement.

• Corrosion-Resistant Construction – Designed to withstand harsh marine environments and long-term use.

Engine & Boat Compatibility

• T50 Present
• T60 Present
• 60 2003 and Older
• C60 2003 and Older
• P60 2003 and Older
• E60 2003 and Older

FAQs

Q1: What are signs the water pump housing is worn out?
A: Weak water flow, overheating, or visible scoring inside the housing are common signs.

Q2: Can a damaged housing affect the impeller?
A: Yes, it can cause uneven wear and reduce the impeller’s ability to move water properly.

Q3: Should this be replaced during a water pump service?
A: If there’s any wear or scoring, it’s a smart move to replace it along with the impeller.

Q4: Is installation difficult?
A: It’s straightforward if you’re already servicing the lower unit, just ensure proper alignment.

Q5: Does saltwater use shorten its lifespan?
A: Yes, corrosion and debris can wear it down over time, so regular inspection is important.

• Engine Application
  • T50 - Present
  • T60 - Present
  • 60 - 2003 and Older
  • C60 - 2003 and Older
  • P60 - 2003 and Older
  • E60 - 2003 and Older