6D3-12411-00-00 Thermostat 140°F for Yamaha VX Cruiser HO 1800 2016-2023

Thermostat for Yamaha VX Cruiser HO 1800

This 140°F thermostat for Yamaha watercraft replaces OEM part 6D3-12411-00-00 and regulates engine temperature on VX Cruiser HO 1800 models from 2016 to 2023.

Overview

This thermostat for Yamaha maintains a steady 140°F operating temperature by regulating coolant flow through the engine. It serves as a direct replacement for OEM part 6D3-12411-00-00 on VX Cruiser HO 1800 models built from 2016 to 2023. A practical choice for owners handling their own cooling system service.

Built For Performance

• 140°F opening temperature matches the factory specification
• Replaces OEM part number 6D3-12411-00-00
• Flange and housing sized for a correct fit in the stock location
• Resists heat cycling and continuous coolant exposure
• Regulates flow so the engine reaches and holds operating temperature

Fits These Machines

• for Yamaha VX Cruiser HO 1800, 2016
• for Yamaha VX Cruiser HO 1800, 2017
• for Yamaha VX Cruiser HO 1800, 2018
• for Yamaha VX Cruiser HO 1800, 2019
• for Yamaha VX Cruiser HO 1800, 2020
• for Yamaha VX Cruiser HO 1800, 2021
• for Yamaha VX Cruiser HO 1800, 2022
• for Yamaha VX Cruiser HO 1800, 2023

On-The-Job Use

• Cooling system maintenance on personal watercraft
• Replacing a thermostat that fails to open or close properly
• Correcting overheating or slow warm-up conditions
• Pre-season service before summer riding

Specs At A Glance

Good To Know

Q: What are the signs of a failing thermostat? A: Overheating, slow warm-up, or fluctuating temperature readings often point to a thermostat that is stuck open or closed. Replacing it restores normal coolant regulation.

Q: Is a new gasket required when installing this thermostat? A: Check the listing contents for included hardware, as gaskets may be sold separately. A fresh gasket is recommended for a reliable seal.

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