Mercury Thermostat - 8M0162139

Mercury Thermostat - 8M0162139

140 degrees Fahrenheit (60 degrees Celsius) thermostat sold individually. Thermostats regulate the engine temperature, preventing overheating by ensuring proper flow, which can lead to significant damage if the thermostat fails to open or remains stuck closed. 

• Corrosion-resistant stainless steel delivers increased service life
• Self-cleaning design allows cooling system contaminants to flush through closing surfaces
• Calibrated for proper cooling system temperature response 

Fits:

• 175-225HP 3.4L V6 4-Stroke (SN 2B529482 & Above)
  • 2 Required
• 175HP Pro XS 3.4L V6 4-Stroke (SN 2B529482 & Above)
  • 2 Required
• 200-300HP Pro XS 4.6L V8 4-Stroke (SN 2B529485 & Above)
  • 2 Required
• 250-300HP AMS 4.6L V8 Verado 4-Stroke (SN 2B529482 & Above)
  • 2 Required
• 250-300HP CMS 4.6L V8 4-Stroke (SN 2B529482 & Above)
  • 2 Required
• 250R 4.6L V8 4-Stroke (SN E1080500 & Above)
  • 2 Required
• 300R 4.6L V8 4-Stroke (SN E1080500 & Above)
  • 2 Required