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Sierra 18-1222 Thermostat Gasket for Johnson/Evinrude Outboards

Manufacturer

Picture for manufacturer Sierra

Part Number

18-1222
11 reviews
Sale Price

$14.71

In Stock (5)

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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 18-1222 is a replacement thermostat gasket designed specifically for Johnson and Evinrude outboard motors. This gasket creates a reliable seal between the thermostat housing and engine block, preventing coolant leaks and ensuring proper engine temperature regulation.

Key Features:

  • Direct replacement for Johnson/Evinrude OEM part number 394408
  • Precision-cut for accurate fitment and reliable sealing
  • Manufactured from durable gasket material resistant to coolant and temperature extremes
  • Essential component for thermostat installation and maintenance
  • Sierra Marine quality - trusted aftermarket brand for marine engine parts

This gasket should be replaced whenever the thermostat is removed for service or replacement to ensure a proper seal and prevent cooling system issues. Using a new gasket helps maintain optimal engine operating temperature and protects against overheating.

Great experience!

OK so far.

Best prices I've found. Shipping was fast never had any issues bought multiple things from them and do plan on going back.

good

Excellent

Right price. Quick & easy

Great online experiance

Smooth transaction

quick and good price

Perfect

Found what I wanted at the best price on the internet! Good tie-in with Amazon also.

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