New Thermostat Assy for Yamaha F300 &F350 X-ref: 6AW-12411-00-00 6AW-12411-01-00

Thermostat Assy for Yamaha

This thermostat assembly for Yamaha F300 and F350 outboards regulates engine coolant flow and references OEM cross-reference numbers 6AW-12411-00-00 and 6AW-12411-01-00.

Overview

This thermostat assembly is engineered for Yamaha F300 and F350 outboards, keeping engine temperatures in range by controlling coolant circulation. It serves as a reliable replacement thermostat assy for boats used in saltwater or freshwater. Marine technicians use this thermostat assembly to correct overheating and warm-up issues.

Built For Performance

• Regulates coolant flow to prevent overheating and maintain stable engine temperature
• Direct replacement referencing OEM part numbers 6AW-12411-00-00 and 6AW-12411-01-00
• Constructed to handle marine cooling system conditions
• Designed for use in Yamaha F300 and F350 outboards
• Meets OEM form, fit, and function standards for a dependable swap

Fits These Machines

• for Yamaha F300
• for Yamaha F350

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: What does this thermostat assembly replace? A: It replaces the original Yamaha thermostat assembly referenced by OEM numbers 6AW-12411-00-00 and 6AW-12411-01-00. Confirm the engine serial number to verify the correct version.

Q: How does a faulty thermostat affect an outboard? A: A faulty thermostat can cause overheating or slow warm-up. This thermostat assembly restores normal coolant flow and stable operating temperature.

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