Four Seasons Engine Water Outlet Thermostat Housing

The Four Seasons Engine Water Outlet Thermostat Housing (also called a thermostat housing, coolant outlet, or water neck) is a replacement part for the engine cooling system. It holds the thermostat in place and gives coolant a sealed path out of the engine and toward the radiator. A cracked, corroded, or leaking housing can cause coolant loss and overheating. Replacing it restores a reliable seal and steady coolant flow.

Key Features:

• Replaces the original water outlet or thermostat housing
• Made to hold the thermostat securely and keep the connection leak-resistant
• Helps maintain proper engine operating temperature
• Built for durability under repeated heat cycles and exposure to coolant
• Made by Four Seasons, a long-established name in engine cooling and climate control parts

Replacing the thermostat and gasket or seal at the same time as the housing is good practice. Use fresh coolant when you refill the system. Choose the correct item from the product options on this page.