Yamaha - Water Seal - Cooling System Sealing Component - 6E5-44365-00-00

Overview

When you have been around Yamaha outboards long enough, you learn that cooling system seals are the kind of parts you do not ignore. The Yamaha Water Seal 6E5-44365-00-00 helps keep cooling water where it belongs so the system can do its job without leaks or pressure loss. It is a small part, but on older two strokes, offshore motors, and high performance models alike, a worn seal can turn into a bigger problem fast. Replacing seals during water pump or cooling system service is one of those smart jobs that saves trouble later.

Key Features

• Genuine Yamaha OEM Construction – Built to Yamaha factory specifications for dependable fit and sealing performance.
• Helps Maintain Cooling System Integrity – Supports proper water flow by sealing key cooling system passages and components.
• Direct Replacement Fit – Designed to install correctly on compatible Yamaha outboard assemblies without modification.
• Important During Service Work – Commonly replaced during water pump repairs, cooling system maintenance, or lower unit service.

Engine & Boat Compatibility

• 115 - 1984-2009
• 130 - 1988-2004
• 150 - 1984-Current
• 175 - 1984-Current
• 200 - 1984-Current
• 225 - 1990-Current
• 250 - 1990-Current
• B115 - 1998-1999
• C115 - 1991-2000
• C150 - 1996-1999
• D150 - 1997-1999
• DX150 - 1999-2005
• F115 - 2000-2016
• F150 - 2004-Current
• F175 - 2014-Current
• F200 - 2002-Current
• F225 - 2002-Current
• F250 - 2005-Current
• FL150 - 2010
• L130 - 1989-2001
• L150 - 1986-1999
• L200 - 1986-1999
• L225 - 1994-1999
• L250 - 1990-1999
• LF115 - 2000-Current
• LF150 - 2004-Current
• LF200 - 2002-Current
• LF225 - 2002-2010
• 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
• V150 - 2000-2008
• V175 - 2000
• V200 - 1998-1999
• V225 - 1998-1999
• V6EXCEL - 1987-1989
• V6SPECIAL - 1984-1986
• 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 - 2001-2012
• 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

FAQ

Q: What does a water seal do on a Yamaha outboard?
A: It helps keep cooling water contained in the right passages so the engine can maintain proper water flow and pressure.

Q: What are signs that a water seal may be worn out?
A: Common signs include water leaks during service, reduced cooling efficiency, or damaged seal material found during inspection.

Q: Should this seal be replaced during water pump service?
A: Yes. Many technicians replace seals anytime the assembly is apart so the system goes back together with fresh sealing components.

Q: Can saltwater use wear seals out faster?
A: Yes. Salt, heat, and age can all shorten seal life, especially on engines that see heavy use in harsh marine conditions.

Q: Is this a part most boat owners replace on its own?
A: Usually it is replaced as part of larger cooling system or lower unit service rather than by itself.

• Supersessions
  6E5-44365-01-00, 6E5-44365-01-00
• Engine Application
  • 115 - 1984-2009
  • 130 - 1988-2004
  • 150 - 1984-Current
  • 175 - 1984-Current
  • 200 - 1984-Current
  • 225 - 1990-Current
  • 250 - 1990-Current
  • B115 - 1998-1999
  • 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 - 1986-1999
  • L200 - 1986-1999
  • L225 - 1994-1999
  • L250 - 1990-1999
  • LF115 - 2000-Current
  • LF150 - 2004-Current
  • LF200 - 2002-Current
  • LF225 - 2002-2010
  • 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
  • V150 - 2000-2008
  • V175 - 2000
  • V200 - 1998-1999
  • V225 - 1998-1999
  • V6EXCEL - 1987-1989
  • V6SPECIAL - 1984-1986
  • 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 - 2001-2012
  • 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