Quicksilver 861183 Thermostat Housing Water Pump Assembly

The Quicksilver 861183 is a genuine OEM thermostat housing assembly designed for Mercury and Mercruiser marine engines. This critical cooling system component houses the thermostat and connects to the water pump circulation system, maintaining proper engine operating temperature.

Key Features:

• Genuine Quicksilver OEM part ensures exact fit and reliable performance
• Durable construction designed to withstand marine environment conditions
• Maintains proper coolant flow and temperature regulation
• Direct replacement for worn or damaged thermostat housings
• Engineered to Mercury Marine's exacting quality standards

This thermostat housing is essential for proper engine cooling system operation. Regular inspection and replacement of cooling system components helps prevent overheating and extends engine life. Always verify fitment for your specific engine model before ordering.