6D3-12411-00-00 Thermostat 140°F for Yamaha FX Cruiser HO 1800 2009-2023

Thermostat for Yamaha FX Cruiser HO 1800

This 140°F thermostat, OEM cross-reference 6D3-12411-00-00, regulates coolant flow to keep your engine at the correct operating temperature.

Overview

This thermostat for Yamaha is a direct-fit replacement that controls coolant circulation so your engine reaches and holds its target temperature. The 140°F rating matches the original specification for the FX Cruiser HO 1800, helping prevent overheating on long rides and keeping combustion efficient. It is aimed at riders and mechanics doing routine cooling system service.

Built For Performance

• 140°F opening temperature matches original factory specification
• OEM cross-reference 6D3-12411-00-00 for straightforward part matching
• Wax-pellet design opens and closes reliably as coolant warms
• Sealed housing resists corrosion from coolant and marine moisture
• Direct-fit dimensions for the FX Cruiser HO 1800 cooling system

Fits These Machines

• for Yamaha FX Cruiser HO 1800, 2009-2023

On-The-Job Use

• Routine cooling system maintenance and refresh
• Replacing a thermostat stuck open or closed
• Overheating diagnosis and repair on the water
• Pre-season service before summer riding

Specs At A Glance

Good To Know

Q: How do I know if my thermostat needs replacing? A: Common signs include overheating, coolant not warming to normal temperature, or erratic gauge readings during a ride.

Q: Does the part number matter when ordering? A: Yes, matching 6D3-12411-00-00 helps confirm the thermostat fits your FX Cruiser HO 1800 correctly.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.