Description
The Sierra Thermostat Kit - Mercruiser - S18-3647 comes with everything you need to replace your old thermostat. This kit includes a thermostat, a thermostat cover gasket, an o-ring, and a thermostat housing gasket.
It is compatible with part numbers 807252Q5, 807252T8, 27-48818-1, 27-33179-2, 27-47510, 27-30224, 27-53045-1, and 27-33918.
Trust the quality of Sierra's products for your marine engine needs.