ACDelco Engine Coolant Water Outlet Housing

The ACDelco Engine Coolant Water Outlet Housing (also called a thermostat housing or coolant outlet) is a replacement part for the engine cooling system. It routes coolant from the engine to the radiator. On many applications it also holds the thermostat in place and connects to the upper radiator hose. ACDelco is a General Motors parts brand.

Key Features:

• Replaces a worn, cracked, corroded, or leaking water outlet or thermostat housing.
• Helps the engine keep a consistent operating temperature by directing coolant flow correctly.
• Made to fit and perform like the original part, so installation is straightforward.
• Built to resist heat, pressure, and long-term coolant exposure.
• Backed by ACDelco's reputation in automotive replacement parts.

A faulty water outlet housing can cause coolant leaks, overheating, and lost cooling system pressure. Replacing it restores proper coolant flow and helps protect the engine. When you replace the housing, it's good practice to use new gaskets or seals and fresh coolant.