Thermostat - 8M0057307

Thermostat - 8M0057307

130 degrees Fahrenheit (54 degrees Celsius) thermostat is sold individually. Thermostats regulates 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. 

• Easy to replace with common shop tools. See your owner's manual for removal of non-functioning thermostat and replacement of new thermostat.
• 130 F degree thermostat. Use only the temperature thermostat listed in your owner's manual or service manual.
• Proper engine cooling temperature assures peak performance and highest efficiency.
• Produced by Mercury Marine to our stringent original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser stern drive.

Fits:

• 200HP Pro XS Optimax 3.0L (SN 1B912786-2B535571)
  • 2 Required
• 200HP 3.0L EFI 2-Stroke (SN 0T750164 – 0T800999, 0T801000 – 1B417701)
  • 2 Required
• 200HP 3.0L EFI 2-Stroke (SN 1B504989 – 2B528096)
  • 2 Required
• 200-225HP DTS Optimax 6 Cyl. 3.0L (SN 0T599000-1B964735)
  • 1 Required
• 225HP Pro XS Optimax 3.0L (SN 1B04549 & Above)
  • 2 Required
• 225HP XS/Sport XS 6 Cyl. 2.5L DFI Optimax (SN 1E002584-1B792195)
  • 1 Required
• 225HP Sport XS 6 Cyl. 3.0L DFI Optimax (SN 1E000797-1E002583)
  • 1 Required
• 225-250HP 3.0L EFI 2-Stroke (SN 0T409000 – 0T800999, 0T801000 – 1B177011, 1B4177012 – 1B504988, 1B504989 – 2B528096)
  • 2 Required
• 250HP 6 Cyl. Optimax (SN 1B528615-2B535086)
  • 1 Required
• 250HP Sport XS 2.5L 6 Cyl. 2-Stroke (SN 1E002342-1E051823, 1E051824-1E052994)
  • 1 Required
• 250HP Pro XS 3.0L 2-Stroke DFI (SN 1B426561-1B752546, 1B752547-2B535608)
  • 2 Required
• 200-300HP Optimax 3.0L V6 (non-pro models) (SN 1B22700 & Above)
  • 2 Required
• 300X 3.0L EFI Pro Max (SN 0T235084 – 0T429939, 0T429940 – 0T999587)
  • 2 Required
• 300 HP XS 6 Cyl 2-Stroke 3.2L (SN 1E001867-1E052057,1E052058-1E053987)
  • 1 Required

Alternative Part #s: 885599004, 885599003, 8855991