Motorad 4886KTFS Engine Coolant Thermostat Housing Assembly

Engine Coolant Thermostat Housing Assembly

Motorad 4886KTFS is an engine coolant thermostat housing assembly built to OE specifications for Ford cooling system service. It combines a steel and stainless steel housing with a copper thermostat element and paper gasket material to support accurate coolant temperature control in demanding applications.

Compatible With select 1972-1979 Ford E-100 Econoline, E-250 Econoline, E-350 Econoline, F-100, F-150, F-250, and F-350 models, this Motorad Kit product is specified for 192 Deg. F operation and includes the housing, Fail-Safe thermostat, and gasket in the application notes.

• Motorad Kit line thermostat housing assembly for OE-style cooling system service
• Part number 4886KTFS for direct catalog identification
• 192 Deg. F thermostat temperature rating
• Gasket or seal included; paper gasket material
• 2 bolt holes, 1 outlet port, silver finish
• Flange diameter: 2.13 in; outlet diameter: 1.61 in
• Built with steel, stainless steel, copper, and paper materials

OE-Style Cooling System Performance

Motorad 4886KTFS is manufactured using OEM-quality materials and OE supplier processes to match factory specifications. The copper case and wax compound are used to respond quickly to coolant temperature changes, helping maintain stable engine operating temperature in Ford E-100 Econoline, Ford F-250, and Ford F-350 cooling systems where precise thermostat control matters. This part cross-references 94886KTFS for the same application.

Common Issues This Part Addresses

• Coolant leaks at the thermostat housing or gasket surface
• Erratic engine temperature caused by a worn thermostat housing assembly
• Delayed warm-up from a thermostat that no longer opens at the specified temperature
• Corrosion or material fatigue in the original housing
• Service replacement needs on Ford E-Series vans and Ford F-Series trucks with OE-specified temperature control

Installation Notes and Tips

Verify engine code, emissions configuration, and thermostat temperature specification before installation. Clean the mating surfaces thoroughly, inspect the coolant passages for corrosion or debris, and confirm the flange and outlet dimensions match the original part. Bolts are not included, so reuse or replace fasteners as required by the vehicle service procedure.

Quality Assurance

Motorad manufactures this thermostat housing assembly to OEM specifications and processes using materials selected for cooling-system durability. The OE-supplier manufacturing approach and Fail-Safe thermostat design support consistent temperature control in the listed Ford applications.