Replaces OEM part #
For: Mercruiser 224 CID3"
Sierra part # 18-0365 Heat exchanger end gaskets
These gaskets have been designed and manufactured for the harsh marine environment of hi-temperatures and moisture. Gasket material contains non-asbestos fibers with fiberglass and aramid fiber to enhance temperature and pressure gasket performance.
The heat exchanger end gasket comes as a complete set with precise CAD cut gasket to eliminate hand cutting or trimming for proper alignment. Typical thickness for these products can range from 1/32" through 1/4". It is recommended during installation to clean both surfaces to the bare metal and apply a thin layer of high-temperature silicone sealer on the surface side to ensure the ultimate seal.
Matching two engine components always requires some form of gasket, however, to ensure any variance in those mating parts are assembled without leakage, it is recommended that you use of a thin layer of high-temperature silicone sealer on both sides of gasket prior to installation. It is also important to ensure that reassembly is done with a clean surface free of debris and old gasket material.
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