6D3-12411-00-00 Thermostat 140°F for Yamaha FX Cruiser HO 1900 2024-2026

Thermostat for Yamaha FX Cruiser HO 1900

This thermostat is a 140°F replacement engine thermostat for Yamaha FX Cruiser HO 1900 personal watercraft, cross-referencing OEM part number 6D3-12411-00-00.

Overview

This 140°F thermostat for Yamaha FX Cruiser HO 1900 watercraft regulates coolant flow to keep engine temperature within the designed operating range. As a direct-fit replacement for OEM 6D3-12411-00-00, it suits riders performing scheduled cooling system maintenance or replacing a failed thermostat. It is built for Yamaha FX Cruiser HO 1900 owners who want a dependable thermostat for Yamaha watercraft without paying dealership prices.

Built For Performance

• 140°F opening temperature matches the factory rating for consistent engine warm-up
• Cross-references OEM part number 6D3-12411-00-00 for direct replacement
• Wax-pellet design opens and closes smoothly as coolant temperature changes
• Housing and seal surfaces machined for a clean fit in the thermostat housing
• Built from corrosion-resistant materials for marine cooling systems
• Tested for stable opening temperature across repeated heat cycles

Fits These Machines

• for Yamaha FX Cruiser HO 1900, 2024-2026

On-The-Job Use

• Scheduled cooling system maintenance on Yamaha FX Cruiser HO 1900
• Replacing a thermostat stuck open or closed
• Freshwater and saltwater riding where coolant temperature control matters
• Cooling system refresh before the riding season

Specs At A Glance

Good To Know

Q: Is this an original Yamaha part? A: No, this is an aftermarket thermostat that cross-references OEM part number 6D3-12411-00-00. Always verify the part number against your machine before ordering.

Q: Should I replace the thermostat gasket at the same time? A: Since the thermostat housing has to be opened for replacement, fitting a fresh gasket at the same time is common practice. Confirm the correct gasket for your model before installation.

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