Motorad 4818KTFS Engine Coolant Thermostat Housing Assembly

Motorad 4818KTFS Thermostat Housing Kit

Motorad 4818KTFS is an engine coolant thermostat housing assembly kit built for Ford and Mercury applications that call for a 192 degree F thermostat. It combines a steel, stainless steel, copper, and paper housing setup with a paper gasket to support accurate coolant flow control in classic cooling systems.

As part of Motorad’s Kit product line, this assembly is supplied as an OE-style service solution for vehicles that need the thermostat housing, thermostat, and gasket addressed together. The design uses OEM specifications and processes, with a copper case and wax compound for quick reaction to coolant temperature changes.

Key Features

• Engine coolant thermostat housing assembly for cooling system service
• 192 degree F thermostat rating
• Gasket or seal included
• 2-bolt housing design
• 1 outlet port with 1.78 in outlet diameter
• 2.13 in flange diameter and 0.06 in flange thickness
• Silver finish
• Paper gasket material
• OE supplier manufacturing standards

Detailed Description

Motorad 4818KTFS is engineered for classic Ford and Mercury engines that require a thermostat housing assembly with OE-specified temperature control. The housing is manufactured to OEM quality standards and uses materials selected for durability in demanding cooling systems. The copper case and wax compound help the thermostat react quickly as coolant temperature changes, supporting stable engine operating temperature.

This part cross-references Motorad 4818KTFS and 94818KTFS for the same application. It is a direct-fit style service part for vehicles such as Ford F-100, Ford F-250, Ford Mustang, and Mercury Cougar applications listed below.

Vehicle Fitment

• Fits 1968-1976 Ford F-100, N/A. Temperature 195F; includes housing, Fail-Safe thermostat and gasket; OE specified temperature; kit.
• Fits 1975-1976 Ford F-150, N/A. Temperature 195F; includes housing, Fail-Safe thermostat and gasket; OE specified temperature; kit.
• Fits 1968-1976 Ford F-250, N/A. Temperature 195F; includes housing, Fail-Safe thermostat and gasket; OE specified temperature; kit.
• Fits 1968-1976 Ford F-350, N/A. Temperature 195F; includes housing, Fail-Safe thermostat and gasket; OE specified temperature; kit.
• Fits 1969-1971 Ford E-100 Econoline, N/A. Temperature 195F; includes housing, Fail-Safe thermostat and gasket; OE specified temperature; kit.
• Fits 1965-1971 Ford LTD, N/A. Temperature 195F; includes housing, Fail-Safe thermostat and gasket; OE specified temperature; kit.
• Fits 1970 Mercury Cougar, N/A. Temperature 195F; includes housing, Fail-Safe thermostat and gasket; OE specified temperature; kit.
• Fits 1967 Mercury Cougar, N/A. Temperature 195F; includes housing, Fail-Safe thermostat and gasket; OE specified temperature; kit.
• Fits 1968-1969 Ford Mustang, N/A. Temperature 195F; includes housing, Fail-Safe thermostat and gasket; OE specified temperature; kit.
• Fits 1968 Ford Thunderbird, N/A. Temperature 195F; includes housing, Fail-Safe thermostat and gasket; OE specified temperature; kit.
• Fits 1968 Mercury Marquis, N/A. Temperature 195F; includes housing, Fail-Safe thermostat and gasket; OE specified temperature; kit.
• Fits 1967 Ford Thunderbird, N/A. Temperature 195F; includes housing, Fail-Safe thermostat and gasket; with 2.125in diameter outlet; OE specified temperature; kit.
• Fits 1967 Mercury Colony Park, N/A. Temperature 195F; includes housing, Fail-Safe thermostat and gasket; OE specified temperature; kit.

Common Repair Uses

• Restores proper coolant temperature regulation
• Addresses leaking or worn thermostat housing surfaces
• Replaces a thermostat housing with corrosion or material fatigue
• Helps correct overheating caused by thermostat control issues
• Supports service on classic Ford and Mercury cooling systems

Installation Notes and Tips

Verify flange diameter, outlet diameter, bolt hole count, and thermostat temperature before installation. Clean the mating surfaces thoroughly and inspect the cooling system for contamination, old gasket material, or warped sealing faces. Use the included gasket during assembly and confirm the housing aligns with the vehicle’s OE-style coolant routing.

Quality Assurance

Motorad manufactures this thermostat housing assembly with OEM quality materials and safety standards as an OE supplier. The part is built to OEM specifications and processes for consistent fit and temperature control in demanding automotive cooling systems.