Engine Coolant Temperature Sensor for Ford Focus Mk3 2015-2018 Direct Fit Replacement

Ford Focus Mk3 2015-2018 Engine Coolant Temperature Sensor is a reliable, direct-fit replacement that helps your engine run smoothly by providing precise coolant temperature readings to the ECU. When this sensor works correctly, your car starts more reliably, fuel delivery is optimized, and emissions are better controlled. This enables easier cold starts, steadier idling, and consistent performance as the engine warms up.

Designed for modern Ford models, this sensor supports Ford Focus Mk3 15-18, Mondeo, Kuga, Edge, Explorer, Lincoln MKZ and more in the 3.5 family, ensuring compatibility with a range of popular vehicles. The part numbers listed below reflect OE references, making it easier to verify you’re getting a true replacement that matches your original sensor. Note that compatibility is provided for reference—always compare the Part Number to your existing part to ensure a correct fit.

OE numbers: 9L8A6G004BC, 9L8Z6G004C, 9L8A6G004BB, 3L7Z6G004BA, 3L7U6G004BA, CAY102300, CY0118840, 9L8Z6G004B, 9L8Z6G004E, 5219027, 5217375, 9L8Z6G004F, 1792647, 9L8Z6G004EFC.

Suitable for: Ford Focus Mk3 2015-2018, Mondeo, Kuga, Edge, Explorer, Lincoln MKZ 3.5. Origin: Mainland China.

In short, this coolant temperature sensor helps your vehicle's engine management system read real-time coolant temperature, enabling accurate fuel mixture, proper ignition timing, and smoother transitions between cold and warm operation. It’s a practical upgrade when you notice erratic temperature readings, rough cold starts, or fluctuating idle speeds.

Benefits & Tips

• Restore reliable cold starts and consistent idle by ensuring accurate coolant temperature data reaches the ECU.
• Improve fuel efficiency and emission control by enabling precise fuel delivery as the engine warms up.
• Check the sensor’s connector and wiring during replacement to prevent misreads caused by poor connections.

Product specifications

• Category: Engine / Electrical
• Brand: NONE
• OE Reference Numbers: 9L8A6G004BC, 9L8Z6G004C, 9L8A6G004BB, 3L7Z6G004BA, 3L7U6G004BA, CAY102300, CY0118840, 9L8Z6G004B, 9L8Z6G004E, 5219027, 5217375, 9L8Z6G004F, 1792647, 9L8Z6G004EFC
• Compatibility: Ford Focus Mk3 2015-2018; Mondeo; Kuga; Edge; Explorer; Lincoln MKZ 3.5
• Origin: Mainland China
• Notes: Compatibility is for reference; please compare the Part Number with your original part before purchase to ensure a correct replacement.

Package includes:

• 1 x Engine Coolant Temperature Sensor

Warnings/Reminders

Before purchasing, verify that your original part’s number matches one of the OE references listed above. If the Part Number differs, this may not be the correct replacement for your vehicle.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

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