6D3-12411-00-00 Thermostat for Yamaha 212 S 1800 2020-2022 140°F

Thermostat 6D3-12411-00-00 for Yamaha

This 140°F thermostat, OEM cross-reference 6D3-12411-00-00, regulates coolant flow to keep the engine of your Yamaha 212 S 1800 within its proper operating temperature range.

Overview

This 140°F thermostat for Yamaha is a direct replacement engine cooling component that opens and closes to control coolant circulation as operating temperature changes. It keeps the 1800 engine in the 2020-2022 Yamaha 212 S at a stable running temperature for dependable performance. It suits owners performing routine cooling system maintenance on their Yamaha boat.

Built For Performance

• 140°F opening temperature rated for precise coolant flow control
• OEM cross-reference 6D3-12411-00-00 for accurate replacement matching
• Sealed wax element responds quickly to temperature changes
• Housing and flange shaped for a clean seal in the thermostat housing
• Construction suited to sustained marine cooling system operation

Fits These Machines

• for Yamaha 212 S 1800, 2020-2022

On-The-Job Use

• Routine cooling system service on Yamaha 1800 marine engines
• Restoring stable operating temperature after an overheating issue
• Preventive maintenance before seasonal boating use
• Cooling system rebuilds and thermostat replacement jobs

Specs At A Glance

Good To Know

Q: Is this thermostat an original Yamaha part? A: This is an aftermarket thermostat that cross-references OEM number 6D3-12411-00-00, so it is not an original Yamaha product. Confirm the number on your existing part before ordering.

Q: Why does the opening temperature matter? A: A thermostat rated at 140°F opens at that temperature to start coolant circulation, so using the correct rating keeps your engine in its designed operating range. A mismatched rating can cause running too cold or too hot.

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