Engine Coolant Thermostat Housing Assembly for 1991-2000 Ford Explorer & More - Motorad 5668KTFS
The Motorad 5668KTFS engine coolant thermostat housing assembly for the 1991-2000 Ford Explorer 4.0L and 1990-2000 Ford Ranger 4.0L holds the thermostat that controls coolant flow to the radiator as the engine warms up.
- Part of Motorad's Fail-Safe line, sold as a Fail-Safe Thermostat Kit.
- Built by an OE supplier with OEM quality materials, specifications and processes.
- Copper case and wax compound respond quickly to coolant temperature changes, and the thermostat starts to open at 192°F (88.89°C).
- High-grade stainless steel and copper construction.
- Gives a consistent, precise response to cooling system needs, and each one is 100% tested and calibrated.
- Meets or exceeds OEM standards, with an original equipment design for a direct fit.
Overheating, a heater that is slow to warm up, or coolant seeping around the housing can mean the thermostat or housing is failing. Before you replace the assembly, rule out a low coolant level (check it only with the engine cool), a weak water pump, a blocked radiator and a faulty cooling fan.
It is a direct-fit replacement for the 1991-2000 Ford Explorer 4.0L and the 1990-2000 Ford Ranger 4.0L.
Specifications
Fit and size
- Quantity per vehicle: 1
- Mounting holes: 3
- Outlet ports: 1
- Outlet port outside diameter: 1.52 in (38.61 mm)
- Flange width: 2.05 in (52.07 mm)
- Flange thickness: 0.05 in (1.27 mm)
Build and materials
- Start-to-open temperature: 192°F (88.89°C)
- Valve type: disk
- Actuator type: mechanical
- Material: steel, stainless steel, copper and rubber
- Seal: rubber, 1 included
- Country of origin: China
In the box
This listing holds one engine coolant thermostat housing assembly with one rubber seal, and both vehicles need just one. Mounting hardware is not included, so plan on new bolts.
Interchange: SFTK8665 · 95668KTFS
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
Does the Motorad 5668KTFS fit the 1991-2000 Ford Explorer 4.0L and 1990-2000 Ford Ranger 4.0L?
Yes. The Motorad 5668KTFS is a direct-fit replacement for the 1991-2000 Ford Explorer 4.0L and the 1990-2000 Ford Ranger 4.0L.
What seal comes with this Motorad engine coolant thermostat housing assembly?
This thermostat housing assembly comes with one rubber seal. Mounting hardware is not included, so plan on new bolts for the install.
At what temperature does the 5668KTFS thermostat start to open?
The Motorad 5668KTFS starts to open at 192°F (88.89°C), with a copper case and wax compound that respond quickly to changes in coolant temperature.
Could coolant seeping at the thermostat housing mean this assembly is failing?
Yes, it can. Seeping coolant at the housing, an engine that runs hot, or a temperature gauge that stays low can all mean the thermostat or its housing is failing.
Is the Motorad Fail-Safe thermostat housing assembly tested and calibrated?
Yes. This thermostat housing assembly is 100% tested and calibrated, and it is built by an OE supplier to OEM specifications and processes.
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