Repair a leaking thermostat with an OEM gasket Cooling system components are subjected to countless heat cycles. As a result, thermostat gaskets can break down and leak. Replacing the gasket at the first sign of a leak can prevent corrosion to surrounding areas. Mercury Marine thermostat gaskets are manufactured to factory specifications. Boaters and technicians can have confidence of quality and performance by using original manufacturer parts. Available for many thermostats on different engine applications, reference your repair manual or the table below to confirm the proper part number for your inboard or outboard engine. Or call 1-800 BOATING with your serial number, or make, model and year of your engine and speak to an expert to find the right gasket. Key Features OEM part ensures proper fit and function Restores seal of thermostat to engine block connection Available for many MerCruiser applications. Application GuideMerc p/nApplicationWM Model No.60208QFord V8 Thermostat Housing Gasket & O-Ring453887233179Q02GM V4, V6 & V8 Flat Cover Plate453882330224GM V6 & V8 Flat Cover Plate O-Ring453881547510GM V6 & V8 Older Style 2-Piece Housing453884941812QGM V6 & V8 Thermostat Housing Gasket & O-Ring4538831488181GM V8 Thermostat Housing Gasket & O-Ring453886447590Q01GM Inline 4- & 6-Cylinder Thermostat Housing Gasket & O-Ring, & Renault 904538856