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Add to CartThe Quicksilver 807252Q4 is a 140°F thermostat designed for GM-based MerCruiser V6 and V8 sterndrive and inboard engines (1983–2016) with standard cooling systems. This thermostat is not intended for high-performance models. Manufactured to Mercury Marine OEM specifications, it ensures optimal engine temperature, fuel efficiency, and reliable performance. Easy to install with basic tools—refer to your owner’s manual for proper application.
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California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
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