Yamaha - Water Pump Housing Cover - Cooling System Housing Component - 6E5-44312-00-00

Overview

When you’re inside a Yamaha lower unit doing water pump service, the housing cover is one of those parts you do not want to overlook. This Yamaha Water Pump Housing Cover helps seal and protect the upper side of the pump assembly so water flow stays where it belongs. If the cover gets warped, grooved, or damaged from heat and wear, cooling performance can suffer in a hurry. Using the correct OEM cover helps the pump go back together right and keeps the cooling system dependable on the water.

Key Features

• Water Pump Assembly Support – Forms a critical sealing surface for the water pump components inside the lower unit.
• Consistent Cooling Performance – Helps maintain proper water flow through the pump so the engine stays protected from overheating.
• Genuine Yamaha Fitment – Built to Yamaha specifications for correct alignment and dependable installation during service.
• Ideal Repair Replacement – Smart part to replace when the original cover shows scoring, wear, or heat damage.

Engine & Boat Compatibility

• 25 - 1997-2002
• 30 - 1987-2002
• 40 - 1984-2005
• 50 - 1984-2005
• 60 - 1996-2005
• 70 - 1984-2005
• 90 - 1984-2005
• 115 - 1984-2009
• 130 - 1988-2004
• 150 - 1984-2009
• 175 - 1984-2000
• 200 - 1984-1998
• 225 - 1990-1997
• 250 - 1990-1995
• B90 - 1997-1999
• B115 - 1998-1999
• C30 - 1995
• C40 - 1997-2003
• C50 - 1998-2001
• C60 - 1996-2001
• C70 - 2000-2001
• C75 - 1998-1999
• C80 - 1997
• C90 - 1997-2001
• C115 - 1991-2000
• C150 - 1996-1999
• D150 - 1997-1999
• DX150 - 1999-2005
• F115 - 2000-Current
• F150 - 2004-Current
• F175 - 2014-Current
• F200 - 2002-Current
• F225 - 2002-Current
• F250 - 2005-Current
• FL150 - 2010
• L130 - 1989-2001
• L150 - 1987-1999
• L200 - 1987-1999
• L225 - 1994-1999
• L250 - 1990-1999
• LF115 - 2000-Current
• LF150 - 2004-Current
• LF200 - 2002-Current
• LF225 - 2002-Current
• LF250 - 2005-Current
• LX150 - 1999-Current
• LX200 - 1999-Current
• LX225 - 2000-2003
• LX250 - 2000-2003
• LZ150 - 2000-2005
• LZ200 - 2000-2012
• LZ250 - 2003-2005
• LZ300 - 2004-2006
• P115 - 1993-1996
• P150 - 1991-1999
• P175 - 1994-1999
• P200 - 1991-1999
• PROV150 - 1986-1990
• PX150 - 1999
• S115 - 1996-1999
• S130 - 1996-1999
• S150 - 1996-1999
• S175 - 1996-1999
• S200 - 1996-1999
• S225 - 1996-1999
• S250 - 1996-1999
• SX150 - 1999-2004
• SX200 - 1999-2005
• SX225 - 2000-2003
• SX250 - 2000-2003
• T25 - 2001-Current
• T50 - 1996-Current
• T60 - 2003-Current
• V150 - 2000-2005
• V175 - 2000
• VF115 - 2015
• VF150 - 2013-Current
• VF175 - 2015-Current
• VF200 - 2009-Current
• VF225 - 2009-Current
• VF250 - 2009-Current
• VX150 - 2000-2004
• VX200 - 2000-2005
• VX225 - 2000-2004
• VX250 - 2002-2004
• VZ150 - 2000-2014
• VZ175 - 2001-2014
• VZ200 - 2001-2009
• VZ225 - 2003-2009
• VZ250 - 2003-2009
• VZ300 - 2004-2009
• Z150 - 2000-2005
• Z175 - 2001-2005
• Z200 - 2000-2012
• Z250 - 2003-2005
• Z300 - 2004-2006

Frequently Asked Questions

Q: What are signs the water pump housing cover should be replaced?
A: Scoring, grooves, warping, or visible heat damage are all good signs the cover should not be reused.

Q: Can a worn housing cover affect cooling performance?
A: Yes. If the cover surface is damaged, the pump may lose efficiency and water flow can drop off.

Q: Should this part be replaced during every impeller service?
A: Not always, but it should be inspected closely each time the pump is apart and replaced if wear is present.

Q: Is this part located in the lower unit?
A: Yes. The housing cover is part of the water pump assembly inside the lower unit.

Q: Does saltwater use make water pump parts wear faster?
A: It can. Salt, sand, and heat all add wear to pump components, which is why regular inspection matters

• Engine Application
  • 25 - 1997-2002
  • 30 - 1987-2002
  • 40 - 1984-2005
  • 50 - 1984-2005
  • 60 - 1996-2005
  • 70 - 1984-2005
  • 90 - 1984-2005
  • 115 - 1984-2009
  • 130 - 1988-2004
  • 150 - 1984-2009
  • 175 - 1984-2000
  • 200 - 1984-1998
  • 225 - 1990-1997
  • 250 - 1990-1995
  • B90 - 1997-1999
  • B115 - 1998-1999
  • C30 - 1995
  • C40 - 1997-2003
  • C50 - 1998-2001
  • C60 - 1996-2001
  • C70 - 2000-2001
  • C75 - 1998-1999
  • C80 - 1997
  • C90 - 1997-2001
  • C115 - 1991-2000
  • C150 - 1996-1999
  • D150 - 1997-1999
  • DX150 - 1999-2005
  • F115 - 2000-Current
  • F150 - 2004-Current
  • F175 - 2014-Current
  • F200 - 2002-Current
  • F225 - 2002-Current
  • F250 - 2005-Current
  • FL150 - 2010
  • L130 - 1989-2001
  • L150 - 1987-1999
  • L200 - 1987-1999
  • L225 - 1994-1999
  • L250 - 1990-1999
  • LF115 - 2000-Current
  • LF150 - 2004-Current
  • LF200 - 2002-Current
  • LF225 - 2002-Current
  • LF250 - 2005-Current
  • LX150 - 1999-2001
  • LX200 - 1999-2001
  • LX225 - 2000-2003
  • LX250 - 2000-2003
  • LZ150 - 2000-2005
  • LZ200 - 2000-2012
  • LZ250 - 2003-2005
  • LZ300 - 2004-2006
  • P115 - 1993-1996
  • P150 - 1991-1999
  • P175 - 1994-1999
  • P200 - 1991-1999
  • PROV150 - 1986-1990
  • PX150 - 1999
  • S115 - 1996-1999
  • S130 - 1996-1999
  • S150 - 1996-1999
  • S175 - 1996-1999
  • S200 - 1996-1999
  • S225 - 1996-1999
  • S250 - 1996-1999
  • SX150 - 1999-2004
  • SX200 - 1999-2005
  • SX225 - 2000-2003
  • SX250 - 2000-2003
  • T25 - 2001-Current
  • T50 - 1996-Current
  • T60 - 2003-Current
  • V150 - 2000-2005
  • V175 - 2000
  • VF115 - 2015
  • VF150 - 2013-Current
  • VF175 - 2015-Current
  • VF200 - 2009-Current
  • VF225 - 2009-Current
  • VF250 - 2009-Current
  • VX150 - 2000-2004
  • VX200 - 2000-2005
  • VX225 - 2000-2004
  • VX250 - 2002-2004
  • VZ150 - 2000-2014
  • VZ175 - 2001-2014
  • VZ200 - 2001-2009
  • VZ225 - 2003-2009
  • VZ250 - 2003-2009
  • VZ300 - 2004-2009
  • Z150 - 2000-2005
  • Z175 - 2001-2005
  • Z200 - 2000-2012
  • Z250 - 2003-2005
  • Z300 - 2004-2006