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Sierra 18-1222 Thermostat Diaphragm Gasket for Johnson/Evinrude V4/V6 Loop Charge

Manufacturer

Picture for manufacturer Sierra

Part Number

118-1222
5 reviews
Sale Price

$12.35

2 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 18-1222 is a precision-engineered thermostat diaphragm gasket designed specifically for Johnson and Evinrude V4 and V6 loop charge outboard engines. This critical cooling system component ensures a proper seal for the thermostat diaphragm assembly, preventing coolant leaks and maintaining optimal engine operating temperatures.

Key Features:

  • Direct replacement for Johnson/Evinrude OEM part number 394408
  • Meets or exceeds original equipment manufacturer specifications
  • Compatible with V4 and V6 loop charge cooling systems
  • Precision-cut for accurate fitment and reliable sealing
  • Cross-reference: GLM 46130, Evinrude/Johnson 394408

Sierra Marine replacement parts are manufactured to deliver dependable performance and durability in demanding marine environments. This gasket is an essential component for thermostat maintenance and cooling system repairs on compatible Johnson and Evinrude outboard motors.

Exceeded my expectations!

Needed assistance with out Tax Certificate and received immediate response. Exceptional service!

Very fast and efficient.

Very satisfied with the amount of time it took to get delivery and the quality of the product

Got what I needed in a timely fashion.

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