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Sierra 18-3557 Thermostat 143 Degree for OMC Johnson Evinrude Outboard

Manufacturer

Sierra

Picture for manufacturer Sierra

Part Number

18-3557
12 reviews
04/22/2036 12:43 AM
Sale Price

$18.62

In Stock (5)

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Usually delivered within 2 days

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Product Details

The Sierra 18-3557 is a precision-engineered marine thermostat designed for OMC, Johnson, and Evinrude outboard motors. This thermostat maintains optimal engine operating temperature at 143°F (62°C), ensuring reliable performance and preventing overheating in both freshwater and saltwater environments.

Key Features:

  • 143°F (62°C) temperature rating for precise engine cooling control
  • Direct replacement for multiple OEM part numbers including OMC 396987 and 382385
  • Compatible with OMC outboard models 55, 60, 65, 70, and 75 HP from 1968-1988
  • Fits Mercury 90-160 HP and select Volvo Penta models including 3.0 GXi
  • Durable construction for long-term reliability in marine applications

OEM Cross-Reference Numbers:

  • OMC: 396987, 382385
  • Chrysler/Force: F335068
  • Mercury Marine: 47594
  • Volvo Penta: 21148403
  • GLM: 13080
  • Mallory: 9-43024

This genuine Sierra replacement thermostat is an essential component of your outboard motor's cooling system, designed to regulate coolant flow and maintain consistent engine temperature for optimal performance and longevity.

so far, so good

so far so good didn't receive the product yet >>?

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