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Sierra 18-3557 Marine Thermostat 143°F for MerCruiser Volvo Penta OMC

Manufacturer

Sierra

Picture for manufacturer Sierra

Part Number

118-3557
5 reviews
04/21/2036 11:59 AM
Sale Price

$21.94

2 left at this price

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Usually delivered within 2 days

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Product Details

The Sierra 18-3557 is a 143-degree marine thermostat designed for MCM GM in-line 6 cylinder engines, providing precise temperature control for optimal engine performance. This replacement thermostat is engineered to maintain proper cooling system operation in the demanding marine environment.

Key Features:

  • Temperature rating of 143°F (62°C) for reliable engine cooling
  • Meets or exceeds original equipment specifications
  • Durable construction for long-lasting performance in saltwater and freshwater applications
  • Direct replacement for multiple marine engine brands

OEM Cross-References:

  • Chrysler/Force/US Marine F335068
  • Johnson/Evinrude 382385, 396987
  • MerCruiser Stern Drive 47594
  • Volvo Penta 21148403
  • Mallory 9-43024
  • GLM 13080

This thermostat is compatible with various marine applications including MerCruiser stern drives, Volvo Penta engines, and Johnson/Evinrude outboards. Sierra marine parts are trusted by OEM manufacturers and boat builders for their quality and reliability.

Awesome experience, next level customer support.

Love it, 2nd order

Great customer service!

I had a great experience purchasing Power Stop brakes and rotors from THMotorsports. I got a great price and received exactly what I ordered in within 4 days. Great service !

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