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Add to CartWhen needing to replace your thermostat, we recommend Sierra high-quality engine parts as they are designed to meet OEM specifications at an economical price. The Sierra thermostats are designed for use on Ford 302/351 CID Engines, and used on all V-8 Chrysler engines with Rochester carburetors from 1986 to the present. Sierra thermostats are engineered for installation on water-cooled engines.
Interchangeable with:
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
Other Details
Sierra 18-3668 Thermostat Kit for Mercruiser Stern Drives For Mercruiser engines using 142 degree thermostats Fits 1983 & newer GM V-6 & V-8 engines with standard...
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Sierra 18-70934 Mercruiser Molded Hose Sierra high-quality engine parts are designed to meet OEM specifications. Fits MCM/MIE GM V-8 (427, 454 & 502 CID) engines. Interchangeable...
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Thermostat Gasket (Priced Per Pkg of 2) Special Order est. 10 Days Supersedes 18-2917
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Sierra 18-5431 Mercruiser V8 Rotor Assembly Sierra high-quality engine parts are designed to meet OEM specifications. Fits GM V-8 Engines with Thunderbolt IV & V Ignition. Interchangeable...
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