Sierra® Thermostat Kit for Mercruiser® 230, 250, and 260 HP Engines, 1977-1987.
Proper thermostat operation is key in getting peak performance and maximum fuel efficiency!
This marine-grade Kit will withstand the rigors of "ugly" brackish and saltwater. Thermostat Kit (part no. 18-3646) replaces O.E.M. thermostat kit no. 807252Q3.Kit contains:
Order up top-quality replacement parts for bottom dollar today!