6D3-12411-00-00 Thermostat 140°F for Yamaha 195 FSH Sport 1800 2020-2026

Thermostat for Yamaha 195 FSH Sport 1800

This thermostat for Yamaha 195 FSH Sport 1800 is a 140°F replacement engine thermostat that manages coolant flow to keep operating temperatures steady, and it cross-references OEM part number 6D3-12411-00-00 for a direct fit.

Overview

This thermostat for Yamaha 195 FSH Sport 1800 controls coolant circulation so the engine reaches and maintains its intended running temperature. It is a 140°F thermostat built to match the OEM 6D3-12411-00-00 specification, making it a practical replacement for worn or stuck units. It suits Yamaha 195 FSH Sport 1800 owners handling routine cooling system maintenance.

Built For Performance

• 140°F opening temperature matched to the 6D3-12411-00-00 specification
• Direct replacement for the factory thermostat position
• Regulates coolant flow to support stable engine temperatures
• Seals against the housing to prevent bypass leakage
• Constructed for repeated heat cycles in marine cooling systems

Fits These Machines

• for Yamaha 195 FSH Sport 1800, 2020-2026

On-The-Job Use

• Routine cooling system replacement on Yamaha 195 FSH Sport 1800 boats
• Correcting an engine that runs cold or overheats from a stuck thermostat
• Preventive maintenance before the boating season
• Servicing the cooling system after flushing or coolant changes

Specs At A Glance

Good To Know

Q: How do I know if my thermostat needs replacing? A: Signs include the engine running cold, overheating, or warming up slowly, which often point to a thermostat stuck open or closed. Replacing it is a straightforward step during cooling system service.

Q: Does this thermostat require any modification to install? A: It is designed as a direct replacement for the 6D3-12411-00-00 part and installs in the factory thermostat location. Confirm your model and serial number before ordering to be certain of fitment.

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