Thermostat for Yamaha 300 350 HP F300 LF300 F350 FL350 LF350 6AW-12411-00-00 NEW

Thermostat for Yamaha

This thermostat for Yamaha 300 and 350 HP outboards regulates coolant flow and carries OEM cross-reference number 6AW-12411-00-00.

Overview

This thermostat for Yamaha 300 and 350 HP outboards maintains proper operating temperature by managing coolant flow. It fits F300, LF300, F350, FL350, and LF350 models and replaces the original part referenced by 6AW-12411-00-00. This thermostat helps marine technicians restore consistent cooling performance.

Built For Performance

• Regulates coolant flow to prevent overheating and maintain stable engine temperature
• Direct replacement option referencing OEM part number 6AW-12411-00-00
• Built to withstand marine cooling system conditions
• Compatible with Yamaha F300, LF300, F350, FL350, and LF350 models
• Helps sustain reliable cooling during high-output operation

Fits These Machines

• for Yamaha F300
• for Yamaha LF300
• for Yamaha F350
• for Yamaha FL350
• for Yamaha LF350

On-The-Job Use

• Replacing a failed thermostat during routine outboard cooling system service
• Maintaining correct engine temperature during long offshore runs
• Restoring cooling efficiency in saltwater or freshwater boats
• Supporting marine mechanics during Yamaha outboard repair jobs

Specs At A Glance

Good To Know

Q: Which OEM part number does this thermostat cross to? A: This thermostat crosses to OEM part number 6AW-12411-00-00. Verify the Yamaha model and serial number before ordering.

Q: Why is the thermostat important for a Yamaha outboard? A: The thermostat keeps engine temperature in the correct range by controlling coolant flow. Replacing a worn thermostat helps prevent overheating and maintains efficient operation.

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