Yamaha - Thermostat Cover Gasket - VZ200–VZ300, Z250–Z300 Cooling System Component - 60V-12414-A0-00

Overview

This gasket sits right at the thermostat housing, and if it’s not sealing properly, you’ll start seeing cooling issues fast. On these high-output Yamaha motors, even a small leak here can throw off temperature control. It’s one of those inexpensive parts that plays a big role in keeping the engine running at the right temp. Swapping it out during maintenance is a quick job that helps avoid overheating headaches later on.

Key Features

• Thermostat Housing Seal – Creates a tight seal to maintain proper cooling system pressure and flow.

• Prevents Coolant Leaks – Helps avoid water loss and overheating issues at the cover point.

• OEM Yamaha Fitment – Built to match factory specs for proper sealing and durability.

• Critical Cooling Component – Supports stable engine temperature under load.

Engine & Boat Compatibility

• VZ200 2003–2010
• VZ225 2003–2010
• VZ250 2003–2010
• VZ300 2004–2010
• Z250 2003–2006
• Z300 2004–2007
• LZ250 2003–2005
• LZ300 2004–2006

FAQ

Q: What happens if this gasket fails?
A: You may see water leaks, overheating, or inconsistent engine temperature.

Q: Should I replace this during thermostat service?
A: Yes, it’s recommended anytime the thermostat housing is opened.

Q: Is this a common wear item?
A: Yes, over time heat and pressure can cause the gasket to degrade.

Q: Can a bad gasket cause overheating?
A: Absolutely, especially if it leads to coolant loss or improper sealing.

Q: Is installation difficult?
A: It’s usually a simple replacement with basic tools.

• Engine Application
  • VZ200 2003–2010
  • VZ225 2003–2010
  • VZ250 2003–2010
  • VZ300 2004–2010
  • Z250 2003–2006
  • Z300 2004–2007
  • LZ250 2003–2005
  • LZ300 2004–2006