Sierra 18-60920 Marine Thermostat Gasket Gaskets & Seals

The Sierra 18-60920 is a marine-grade thermostat gasket engineered to provide a reliable coolant seal between the thermostat housing and the engine block. Designed as a direct OEM replacement, this gasket helps maintain proper engine cooling system integrity and prevents coolant leaks that could lead to overheating and costly engine damage.

Key Features:

• Precision-cut gasket seals the thermostat housing to the engine cooling passage
• Manufactured to meet or exceed original equipment specifications
• Constructed from durable, heat-resistant materials suited for the demanding marine environment
• Ensures proper thermostat function and coolant system pressure retention
• Drop-in OEM replacement for straightforward installation

About Sierra Marine:

Sierra International is a leading supplier of aftermarket marine engine parts, supplying OEM engine manufacturers and boat builders with quality components. All Sierra products meet or exceed the original equipment part they are designed to replace, delivering the reliability and performance boaters and marine technicians depend on.

Replace your thermostat gasket whenever servicing or replacing the thermostat to ensure a leak-free seal and maintain optimal engine cooling performance.