6E5-12411 50° Outboard Thermostat for Yamaha F75 F80 F90 F150 VF250 Parts

50° Outboard Thermostat for Yamaha

This 50° outboard thermostat for Yamaha, carrying OEM cross-reference number 6E5-12411, regulates engine temperature by opening and closing coolant flow to maintain optimal operating conditions. Designed for Yamaha outboard engines, this thermostat ensures consistent thermal performance for reliable operation. The 50° thermostat for Yamaha is a direct replacement component that helps prevent overheating and promotes efficient combustion.

Overview

This 50° outboard thermostat for Yamaha is a precision-engineered cooling system component that maintains proper engine temperature by controlling coolant circulation. It is specifically designed for Yamaha F75, F80, F90, F150, and VF250 outboard motors, ensuring reliable thermal regulation. This thermostat for Yamaha replaces worn or stuck units to restore optimal engine performance and protect against overheating damage.

Built For Performance

• Rated to open at 50°C (122°F) for precise temperature control
• OEM cross-reference 6E5-12411 ensures exact fitment
• Constructed from corrosion-resistant materials for marine environments
• Tested for consistent valve operation under varying engine loads
• Direct replacement for factory-installed thermostat
• Compatible with multiple Yamaha outboard models

Fits These Machines

• for Yamaha F75
• for Yamaha F80
• for Yamaha F90
• for Yamaha F150
• for Yamaha VF250

On-The-Job Use

• Replaces faulty thermostats in saltwater and freshwater outboard applications
• Ensures rapid warm-up for reliable cold starts
• Maintains stable operating temperature during long WOT runs
• Prevents overheating in trolling or slow-speed operation

Specs At A Glance

Good To Know

Q: How do I know if my outboard thermostat needs replacing? A: Signs include overheating, slow warm-up, or fluctuating temperature gauges. A stuck-open or stuck-closed thermostat will disrupt cooling flow, and replacing it with this 50° thermostat for Yamaha restores proper operation.

Q: Can this thermostat be used in saltwater environments? A: Yes, the thermostat is built with corrosion-resistant materials specifically for marine use, including saltwater applications. Regular maintenance and periodic inspection are still recommended to ensure long service life.

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