6DA-12411-01 Yamaha Thermostat | Genuine OEM Yamaha Outboard Part

🔧 Product Description

Genuine Yamaha 60°C Outboard Thermostat - Part Number: 6DA-12411-01

A genuine Yamaha 60°C cooling-system thermostat for selected F150, F175, F200 and VMAX SHO inline-four outboards.

The thermostat regulates cooling-water flow so the engine reaches and maintains its intended operating temperature without running excessively cold or overheating.

⚙️ Key Features

• Genuine Yamaha OEM cooling-system thermostat
• Correct Yamaha part number 6DA-12411-01
• Supersedes earlier thermostat 6DA-12411-00
• Nominal opening temperature: 60°C
• Cross-references with Sierra and Recmar replacements

🚤 Compatibility

Commonly used on

• Yamaha 2.8L inline-four EFI and VMAX SHO cooling systems

Typically suits

• Engine models:
• Yamaha F150C
• Yamaha F150G
• Yamaha F150LC and F150XC from approximately 2017
• Yamaha VF150L from approximately 2014
• Yamaha VF150X from approximately 2015
• Yamaha F175A, F175B and F175C
• Yamaha F175L and F175X from approximately 2014
• Yamaha F175LC and F175XC from approximately 2017
• Yamaha VF175L from approximately 2015
• Yamaha VF175X from approximately 2017
• Yamaha F200F and F200G
• Yamaha F200FET and F200GET - approximately 2013
• Yamaha F200L, F200X and F200XC from approximately 2014
• Yamaha F200LC from approximately 2017
• Yamaha LF200F and LF200G counter-rotation applications
• HP Range: 150HP - 200HP
• Engine Type: Yamaha 2.8L inline-four EFI and VMAX SHO four-stroke outboard
• Year Range: Approximately 2013 onward

🔌 Function

The thermostat restricts cooling-water flow during warm-up and opens as engine temperature rises, maintaining stable combustion and operating temperatures.

⚠️ Common Signs of Failure

• Engine overheats because the thermostat remains closed
• Engine runs excessively cold because the thermostat remains open
• Engine temperature fluctuates during operation
• Salt or corrosion restricts thermostat movement
• Poor warm-up, idle quality or fuel economy

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 6DA-12411-01 → Supersedes 6DA-12411-00
• 6DA-12411-00 earlier Yamaha thermostat reference

OEM / Related Numbers

• 6DA-12411-01
• 6DA-12411-01-00
• 6DA124110100
• 6DA-12411-00
• 6DA-12411-00-00
• Related thermostat cover and gasket references for the 2.8L inline-four cooling system

Aftermarket / Verified Equivalents

• Sierra: 18-3636
• Recmar: REC6DA-12411-01
• SeaStar Solutions: 118-3636
• Direct replacement: 6DA-12411-01 thermostat

📦 Condition

• Genuine Yamaha part
• Brand new
• Supplied in original or equivalent packaging