Description

The Yamaha 67F-12411-01-00 Thermostat is a genuine OEM cooling system component designed to regulate engine temperature in Yamaha outboard motors.

This thermostat controls coolant flow to ensure proper engine warm-up and maintain optimal operating temperature. It helps prevent overheating while improving engine efficiency and longevity in demanding marine environments.

Built to Yamaha’s exact specifications, it delivers consistent performance and reliability across a wide range of outboard applications.

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Key Features

• Genuine Yamaha OEM part
• Maintains correct engine operating temperature
• Ensures consistent cooling system performance
• Direct OEM fit and function
• Corrosion-resistant marine construction

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Engine Compatibility

Yamaha Outboard Engines

Commonly used on:

• Yamaha 2-stroke outboards
• Yamaha 4-stroke outboards

Typical applications include:

• 40HP
• 50HP
• 60HP

Widely used across Yamaha mid-range outboard platforms

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Serial Number Fitment Notice

Fitment depends on:

• Engine model and year
• Cooling system configuration

Always confirm compatibility using your engine model and serial number before ordering.

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Specifications

• Part Number: 67F-12411-01-00
• Type: Engine thermostat
• Function: Regulates coolant temperature
• Construction: Marine-grade metal with integrated valve

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What’s Included

• Thermostat (seal/gasket sold separately unless specified)

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When This Part Needs Replacement

Replace the thermostat if you notice:

• Engine overheating
• Engine running too cold
• Fluctuating temperature readings
• Poor fuel efficiency

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Installation Notes

• Replace gasket or seal during installation
• Ensure proper orientation
• Inspect housing for corrosion or debris
• Test cooling system after installation

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Alternate / Superseded Part Numbers

OEM Cross References

• Yamaha: 67F-12411-01-00

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Shipping

Shipping: Ships same or next day for fast Canada wide shipping.

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Parts Desk Insight

This is a very common Yamaha thermostat—if you’re working on a 40–60HP outboard, this is one of the first cooling parts to check