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Sierra 18-3675 Thermostat Cover Gasket for Mercury Marine

Manufacturer

Picture for manufacturer Sierra

Part Number

118-3675
8 reviews
Sale Price

$4.17

4 left at this price

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-3675 Thermostat Cover Gasket is designed for use with Mercury marine 200-250 HP 3.0L engines, including both DFI and EFI models. This precision-engineered gasket provides a reliable seal between the thermostat housing and cover, preventing coolant leaks and ensuring proper engine temperature regulation.

Key Features:

  • Meets or exceeds original equipment specifications
  • Premium marine-grade construction for harsh saltwater environments
  • Direct replacement for reliable installation
  • Engineered for long-lasting performance

OEM Cross References:

  • Mercury Marine 27850318, 27-8503181
  • Mercury Sport Jet 27-8503181

Sierra is a trusted manufacturer of premium aftermarket marine parts, providing quality components that marine technicians and boat owners rely on for maintenance and repairs.

Cheap and easy and fast

Easy to navigate website, the products we ordered were in stock, and fast order fulfillment!

Ordered a new battery, and got it within 2 days. I was amazed. The battery solved my starting problems and vastly improved my riding experience.

Quality product and fast delivery thanks again!

thank you

good price

Quick and easy and had exactly what I needed.

Fast shipping, Thank you!!

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