6D3-12411-00-00 Thermostat 140°F for Yamaha EX-R 1050 2019-2021 PWC

Thermostat for Yamaha EX-R 1050

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

Overview

This thermostat for Yamaha is a replacement cooling component that opens at 140°F to regulate coolant circulation through the engine. Matching the original specification for the EX-R 1050, it helps the engine warm up properly and prevents overheating during use. It suits riders and technicians performing cooling system service.

Built For Performance

• 140°F opening temperature matches factory specification
• OEM cross-reference 6D3-12411-00-00 for easy part matching
• Wax-pellet element responds accurately to coolant temperature changes
• Corrosion-resistant housing handles coolant and marine conditions
• Direct-fit dimensions for the EX-R 1050 cooling system

Fits These Machines

• for Yamaha EX-R 1050, 2019-2021

On-The-Job Use

• Routine cooling system service and maintenance
• Replacing a thermostat that is stuck open or closed
• Engine overheating inspection and repair
• Pre-season tune-up before riding season

Specs At A Glance

Good To Know

Q: What happens if the thermostat fails? A: A failed thermostat can cause overheating or prevent the engine from reaching normal operating temperature, affecting performance.

Q: Why does the part number matter? A: Matching 6D3-12411-00-00 helps confirm the thermostat is the correct fit for your EX-R 1050.

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