2018 Ford Explorer Thermostats – Restore Cooling Accuracy with OEM Precision

Explorer Thermostats 2018 – Engineered for Reliable Temperature Regulation

The thermostat in your 2018 Ford Explorer is responsible for regulating coolant flow between the engine and radiator. If the thermostat fails, it can cause overheating, lack of cabin heat, or erratic temperature readings—which may lead to engine damage or reduced efficiency.

OEM thermostats are built to Ford’s exact specifications, ensuring that the valve opens and closes at the correct temperature to maintain optimal engine performance. Constructed from durable, corrosion-resistant materials, these components are designed for long service life and a perfect factory fit—no guesswork required.

Whether you're performing routine maintenance or addressing a cooling issue, genuine OEM thermostats are the trusted solution.

W500014S437 - : Engine Coolant Thermostat Housing Bolt for Ford Image

Engine Coolant Thermostat Housing Bolt

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W716735S437 - : Engine Coolant Thermostat Housing Bolt for Ford Image

Engine Coolant Thermostat Housing Bolt

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RG571 - : Motorcraft Engine Coolant Thermostat Gasket for Ford Image

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RG652 - : Motorcraft™ Engine Coolant Thermostat Gasket for Ford Image

Motorcraft™ Engine Coolant Thermostat Gasket

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RTS1081 - : Motorcraft Engine Coolant Thermostat Housing O-Ring for Ford Image

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3M4Z8255A - : Gasket for Ford Image

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W503279S437 - : Engine Cylinder Head Bolt for Ford Image

Engine Cylinder Head Bolt

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BT4Z7H322B - : Automatic Transmission Oil Cooler Control Valve for Ford Image

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CJ5Z8255A - : Engine Coolant Outlet Gasket for Ford Image

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RG636 - : Motorcraft Engine Coolant Outlet Gasket for Ford Image

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W503278S437 - : Genuine Ford Bolt for Ford Image

Genuine Ford Bolt

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W503283S437 - : Engine Oil Filter Adapter Bolt for Ford Image

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Why Choose OEM Thermostats for the 2018 Ford Explorer?

OEM Fitment – Designed for factory specifications to ensure precise performance. 

Prevents Failures – Maintains optimal operation and longevity. 

Durable Construction – Made from high-quality, corrosion-resistant materials. 

Efficient Operation – Ensures proper function and system protection. 

Easy Installation – Direct bolt-on replacement with no modifications required.

Compatible Ford Explorer Trims

These OEM thermostats are compatible with the following 2018 Ford Explorer engine options:

  • 2.3L EcoBoost I4

  • 3.5L Ti-VCT V6

  • 3.5L EcoBoost V6 (Sport and Platinum)

Thermostat location, housing design, and temperature settings may vary by engine. Confirm fitment using your VIN or OE part number before purchase.

Signs Your 2018 Explorer Needs a New Thermostat

🚙 Temperature gauge fluctuates or spikes unexpectedly 

🚙 Overheating during normal driving 

🚙 No warm air from the cabin heater 

🚙 Coolant leaks around the thermostat housing 

🚙 Check engine light or poor fuel economy

A malfunctioning thermostat can reduce efficiency and cause expensive engine damage if not addressed promptly.

How to Replace the Thermostat on a 2018 Ford Explorer

Thermostat replacement is a moderate DIY job or quick service for most mechanics.

Tools Needed: 

✔ Socket and ratchet set 

✔ Drain pan 

✔ Gasket scraper or wire brush 

✔ New OEM thermostat and gasket or seal 

✔ Screwdrivers or pliers (for hose clamps) 

✔ Coolant and funnel 

✔ Torque wrench

Installation Steps:

  1. Cool the Engine & Drain Coolant – Drain to a level below the thermostat housing.

  2. Locate the Thermostat Housing – Usually found at the engine-end of the upper radiator hose.

  3. Remove Bolts & Extract Old Thermostat – Clean mating surfaces thoroughly.

  4. Install New OEM Thermostat – Use a new gasket and ensure correct orientation.

  5. Reassemble & Torque to Spec – Avoid overtightening to prevent leaks.

  6. Refill Coolant & Bleed System – Start engine, top off coolant, and monitor temperature.

  7. Test Drive & Inspect – Ensure stable temperature and no leaks.

Popular Related Parts for 2018 Explorer

🔹 2018 Explorer Radiator Hoses – Replace if cracked, bulging, or leaking 

🔹 2018 Explorer Coolant Temperature Sensor – Sends data to your dashboard and ECU 

🔹 2018 Explorer Radiator – Check for signs of leaks or clogging 

🔹 2018 Explorer Water Pump – Inspect if overheating or coolant circulation issues occur 

🔹 2018 Explorer Coolant Reservoir – Replace if cracked or discolored

Get Your 2018 Explorer Thermostats Today!

Ensure proper temperature regulation and engine longevity with OEM thermostats made for your 2018 Ford Explorer. Factory-fit and tested for reliability in all driving conditions.

🛒 Drive Cool – Shop OEM Thermostats Now!

FAQs About 2018 Ford Explorer Thermostats

When should I replace the thermostat? Typically every 160,000 km or sooner if you experience overheating or temperature issues.

What temperature does the OEM thermostat open at? Usually between 90°C and 95°C (194°F–203°F), depending on the engine type.

Should I replace the gasket or seal when replacing the thermostat? Yes—always replace the gasket or O-ring to prevent coolant leaks.

Can a bad thermostat trigger a warning light? Yes—temperature regulation issues can trigger check engine lights and affect fuel efficiency.

Why choose OEM over aftermarket thermostats? OEM thermostats match the vehicle's factory calibration, ensuring accurate temperature control and maximum durability.