Sierra Thermostat Kit Mercruiser - S18-3647 Trailer Parts Designed for robust performance

Designed for robust performance

Black polyethylene foam tape with acrylic self adhesive backing

Mercury Marine 185MR

- Enhance the performance of your Johnson Pump with the Impeller Johnson Pump OE J09-838S 500185

- Ensure top-notch performance with the world leaders in spark plug technology

Sierra Thermostat Kit Mercruiser - S18-3647 Trailer Parts Designed for robust performanceThe 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.