Yamaha 6FP-12411-00 Thermostat for Yamaha 4 Stroke Outboard Motors 75HP 90HP

Thermostat for Yamaha Outboard Motors

This thermostat for Yamaha 4 stroke outboard motors controls coolant flow to maintain proper engine temperature, and it directly crosses to OEM number 6FP-12411-00. Replacing a failed thermostat for Yamaha outboards helps prevent overheating and keeps 75HP and 90HP motors running reliably.

Overview

This thermostat for Yamaha 4 stroke outboard motors is a cooling system replacement part designed to regulate engine temperature. It matches OEM reference 6FP-12411-00 and suits outboards for Yamaha in the 75HP and 90HP range. Using the correct thermostat for Yamaha keeps cooling performance consistent on the water.

Built For Performance

• Direct replacement thermostat for Yamaha 4 stroke outboard cooling systems
• OEM cross-reference 6FP-12411-00 ensures correct fit for designated models
• Designed for 75HP and 90HP outboard motors for Yamaha
• Helps regulate coolant flow to support stable operating temperature
• Constructed for marine use in demanding saltwater and freshwater environments

Fits These Machines

• for Yamaha 75HP 4 Stroke Outboard Motor
• for Yamaha 90HP 4 Stroke Outboard Motor

On-The-Job Use

• Replacing a worn thermostat during routine outboard cooling system service
• Restoring consistent engine temperature on fishing boats using 75HP or 90HP outboard motors for Yamaha
• Maintaining reliable cooling for recreational runabouts and center consoles
• Helping prevent overheating during long runs at cruising speed

Specs At A Glance

Good To Know

Q: What does this thermostat do in an outboard motor for Yamaha? A: It regulates coolant flow so the engine can stay within its normal operating temperature range. Replacing a stuck thermostat helps prevent overheating and poor engine performance.

Q: How do I confirm this thermostat fits my engine? A: Check your outboard model, serial number, and existing part number against OEM reference 6FP-12411-00 before ordering. This helps ensure the replacement matches your specific 75HP or 90HP motor for Yamaha.

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