Motorcraft RH318 Engine Coolant Thermostat Housing Water Outlet

The Motorcraft RH318 is an OEM-quality engine coolant thermostat housing and water outlet engineered specifically for Ford, Lincoln, and Mercury vehicles. As a direct factory replacement, this component serves as the critical junction point where engine coolant exits the engine block and routes toward the radiator, playing an essential role in maintaining proper operating temperature and preventing overheating.

Key Features:

• Genuine Motorcraft part — the only thermostat housing brand recommended by Ford Motor Company
• Manufactured to exacting Ford OE specifications for accurate temperature control and pressure relief
• Built from first-quality materials chosen for maximum performance and application suitability
• Incorporates any OE innovations and improvements developed since the original vehicle manufacture
• Designed, manufactured, and comprehensively tested to meet stringent Ford Motor Company standards
• Direct bolt-on fitment — no modifications required
• Backed by a Ford Motor Company limited parts warranty

The Motorcraft RH318 thermostat housing restores proper coolant flow management, ensuring your engine maintains the correct operating temperature for optimal performance and heater output. Choosing a genuine Motorcraft water outlet guarantees a precision fit and eliminates the risk of leaks or premature failures associated with non-OEM alternatives.