160 Degree Thermostat Kit | Sierra 18-3647

160 Degree Thermostat Kit | Sierra 18-3647 160 degree thermostat kit fits many different Mercruiser closed cooled marine engines. Fits Mercruiser 3.0L 184 CID fresh water cooled engines from 1990 to 2010 with serial number range C856559 & up Fits Mercruiser 3.0L 181CID fresh water cooled engines from 2008 to 2010 with serial number range A072812 & up Fits Mercruiser 4.3L 262 V-6 fresh water cooled engines from 1996 to 1997 with serial number range 0F803800 to OK999999 Fits Mercruiser 230 GM 5.0L fresh water cooled engines with serial number range 0B525982 to 0F600999 Fits Mercruiser 260 GM 350 CID fresh water cooled engines with serial number range 0B525982 to 0F600999 Kit includes 18-3649 160 degree thermostat,18-2844 cover gasket, 18-2552 cover gasket, 18-2553 cover gasket, 18-7173 o-ring, 18-2917 housing gasket Replaces Mercury 807252Q5, 807252T5 Replaces Mallory 9-43157