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Sierra 18-3640 Thermostat Kit for Mercury Marine Outboards

Manufacturer

Sierra

Picture for manufacturer Sierra

Part Number

18-3640
6 reviews
04/21/2036 8:27 AM
Sale Price

$18.96

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Sierra 18-3640 Thermostat Kit is an OE replacement cooling system component designed for Mercury Marine outboard engines ranging from 40 to 60 horsepower. This kit ensures proper engine temperature regulation by controlling coolant flow, helping prevent overheating and maintaining optimal operating temperatures.

Key Features:

  • Direct OE replacement for Mercury Marine applications
  • Includes thermostat and seal for complete installation
  • Compatible with Mercury 40 HP, 45 HP, 50 HP, and 60 HP outboard engines
  • Precision-engineered to meet or exceed OEM specifications
  • Essential component for maintaining proper engine cooling performance

Sierra Marine is a trusted manufacturer of aftermarket marine engine parts, offering quality replacements that deliver reliable performance. This thermostat kit provides a cost-effective solution for routine maintenance or repair of your Mercury outboard's cooling system.

Arrived as described one day sooner than estimated. Will definitely keep this site on my list to search for low cost OEM brand parts in the future!

Quickly found an obscure part.

fast and simple-good prices but no free shipping:(

Easy checkout...! Thanks.

Good

Best Price i could find for some nice foglamps. easily navigable website.

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