6D3-12411-00-00 Thermostat 140°F for Yamaha EX 1050 2017-2024 Waverunner

Thermostat for Yamaha EX 1050

This replacement thermostat for Yamaha EX 1050 watercraft regulates engine coolant flow, and it carries the OEM cross-reference 6D3-12411-00-00 with a 140°F opening rating.

Overview

This thermostat for Yamaha EX 1050 keeps your personal watercraft's engine at the right operating temperature by controlling coolant circulation. The 140°F rating matches the original specification, so the thermostat for Yamaha EX 1050 opens at the temperature your engine was designed to run at. It is a direct replacement for riders who need to restore proper cooling on the water.

Built For Performance

• 140°F opening temperature matches OEM specification
• Cross-references OEM part number 6D3-12411-00-00
• Direct replacement fit for the original thermostat
• Maintains stable engine operating temperature under load
• Sealed housing resists corrosion from coolant exposure

Fits These Machines

• for Yamaha EX 1050 (2017-2024)

On-The-Job Use

• Routine cooling system maintenance on personal watercraft
• Replacing a stuck or failed thermostat
• Restoring proper engine warm-up and temperature control
• Seasonal pre-ride cooling system checks

Specs At A Glance

Good To Know

Q: How do I know if my thermostat needs replacing? A: Common signs include the engine running too hot, slow warm-up, or erratic temperature readings on the water. If the thermostat sticks open or closed, replacing it restores normal coolant flow.

Q: Is this thermostat the same rating as the original? A: Yes, it opens at 140°F, the temperature rating specified for these watercraft engines. That matching rating helps the engine reach and hold its designed operating temperature.

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