Yamaha Outboard 75 80 90 HP 2 stroke Thermostat & Gasket 688-12411-10 688-1241

Thermostat & Gasket for Yamaha

This thermostat and gasket set is designed for Yamaha outboard engines in the 75-90 HP 2-stroke range, with OEM cross-reference numbers 688-12411-10 and 688-1241.

Overview

This thermostat and gasket set ensures proper engine temperature control for Yamaha 75, 80, and 90 HP 2-stroke outboards. It replaces worn components to prevent overheating and maintain efficient combustion. The set includes both the thermostat and gasket for a complete cooling system service.

Built For Performance

• Includes both thermostat and gasket for complete replacement
• Direct replacement for OEM part numbers 688-12411-10 and 688-1241
• Precision-calibrated thermostat opens at the correct temperature
• High-quality gasket material ensures a leak-free seal
• Engineered for Yamaha 2-stroke outboards from 75 to 90 horsepower

Fits These Machines

• for Yamaha 75 HP 2-stroke outboard
• for Yamaha 80 HP 2-stroke outboard
• for Yamaha 90 HP 2-stroke outboard

On-The-Job Use

• Replacing a worn thermostat during routine cooling system maintenance
• Restoring proper temperature regulation after engine overheating
• Ensuring consistent performance in freshwater or saltwater conditions
• Installing during a water pump replacement service

Specs At A Glance

Good To Know

Q: Will this thermostat fit my 1985 Yamaha 90 HP? A: This set is designed for Yamaha 75-90 HP 2-stroke outboards, but always confirm your engine's serial number for exact compatibility.

Q: Does the gasket need to be replaced at the same time? A: It is recommended to replace both the thermostat and gasket to ensure a proper seal and reliable operation.

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