18-3550 - Thermostat 59078

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Part Number

Sierra Marine

18-3550 - THERMOSTAT 140°

Replaces: Mercury #59078 

If you need the thermostat and the housing gasket see 18-3650 - Thermostat Kit

Warranty (PDF)
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Sierra Marine Thermostat (140) is equivalent to parts:

Sierra Marine is the market leader for aftermarket marine engine parts. Sierra products cover every major engine brand. Sierra offers a comprehensive product line and an unsurpassed customer satisfaction warranty covering parts and labor.