COOLING
Thermostat & Housing
Temperature-controlled valve that holds coolant in the engine until it warms up.
Identification & Position
- Part name
- Thermostat & Housing
- System
- Cooling System
- Location
- In a housing on the engine where a radiator hose attaches. Confirm the exact housing on your engine.
- What it does
- Stays shut for faster warm-up, then opens to let coolant flow to the radiator.
- What it connects to
- • Radiator hose
- • Engine coolant passage
- • Coolant temperature sensor mounted nearby on many engines
- What is above it
- Verification Required
- What is below it
- Verification Required
- What is in front of it
- Verification Required
- What is behind it
- Verification Required
- Must be removed to access it
- • Coolant partially drained
- • Hose at the housing
- • Housing bolts
Show me how to take this apart
Dependency path — the order things must come off
Reveals the order of everything that has to be disconnected or removed to reach this part.
Symptoms & Testing
- Common failure symptoms
- • Overheating (stuck shut)
- • Never reaching temperature / no heat (stuck open)
- • Temperature gauge swinging
- • Leak at the housing
- How to test it
- 1. Watch warm-up behaviour on a scan tool coolant temperature reading.
- 2. Feel for the upper hose warming suddenly as the thermostat opens.
- 3. Inspect the housing for leaks.
Symptoms narrow the list of possibilities. They never confirm a diagnosis on their own — test before replacing anything.
Part Numbers
Enter the Ford part number for your exact configuration.
Enter the aftermarket cross-reference you intend to use.
Part numbers vary by engine, drive type and build date. Nothing is guessed here — enter yours from a verified source on the admin page so it stays with this component.
Difficulty & Time
Safety Warnings
- Engine must be cold.
- Thermostat orientation matters — fit it the correct way round and verify the housing torque.
Tools Needed
- Socket set (metric and imperial)Almost every fastener on the truck
- Pliers setClips, clamps and retainers
- Drain pansCatching oil, coolant and fluids
- Torque wrenchAny fastener with a specification — mandatory for engine work
- Gasket scraperCleaning sealing surfaces without gouging them
Related Parts
Real photos online
Opens photos of "Thermostat & Housing" on other sites
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- Bing ImagesOften turns up different photos than Google.
- Owner forumsPhotos with the story of the repair attached.
- Parts catalogue photosClean studio shots of the part on its own.
- Video walkthroughsSee it in place while someone works on it.
These open other people's websites in a new tab. Photos there belong to whoever took them, so they are shown on their own site rather than copied into this app — and they may be a different year, engine or trim, so always compare against your own truck.