GASKET-THREM COVR (14318005)

Keep your Mercury outboard’s cooling system sealed and operating efficiently with the Genuine Mercury Thermostat Cover Gasket (14318005). This OEM gasket creates a secure seal between the thermostat cover and the engine, helping maintain proper coolant flow while preventing leaks. Mercury engineers this gasket to meet factory specifications, ensuring a precise fit and dependable performance. It supersedes several earlier part numbers, including 14318, 143182, 143183, and 143184.

Support Efficient Engine Cooling

Your thermostat regulates engine operating temperature, and the cover gasket plays an important role in keeping the cooling system sealed. This gasket helps prevent coolant leaks around the thermostat housing, allowing the cooling system to maintain the correct pressure and water flow.

Replacing the gasket whenever you inspect or replace the thermostat also helps improve reliability and reduces the chance of future leaks.

Genuine OEM Fit and Quality

Mercury manufactures the Thermostat Cover Gasket (14318005) from durable materials that perform in harsh marine environments. Because it matches the original factory specifications, installation is quick and straightforward without the need for modifications.

Unlike many aftermarket alternatives, this genuine Mercury gasket delivers the sealing performance and long-term durability your engine was designed to have.

Why Choose Genuine Mercury Parts?

Genuine Mercury parts help protect your engine and maintain the performance you expect every time you head onto the water. Whether you’re replacing the thermostat, repairing the cooling system, or carrying out routine maintenance, the Genuine Mercury Thermostat Cover Gasket (14318005) provides the quality and fit you can trust.

Before ordering, always confirm compatibility using your Mercury engine’s model and serial number to ensure the correct fit.

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