Engine Coolant Temperature Sensor Keep your engine running at the right temperature and protect critical components with a reliable engine coolant temperature (ECT) sensor. This sensor accurately measures coolant temperature and delivers that information to the vehicle's engine control unit (ECU) and dashboard gauge, helping maintain engine performance, fuel efficiency, and emissions control. Key benefits Accurate temperature readings: Provides reliable signals to the ECU and instrument cluster so fuel delivery, ignition timing, and cooling fan operation respond correctly. Prevents engine damage: Early detection of overheating helps avoid warped heads, blown head gaskets, and other costly failures. Restores drivability: Replacing a faulty sensor eliminates rough idle, poor fuel economy, and checkengine lights caused by incorrect temperature input. Simple installation: Compact, directfit design that installs in place of the original sensor with no special tools or programming required for most vehicles. Durable construction: Sealed electrical connector and corrosionresistant housing deliver long service life in harsh enginebay conditions. Key attributes Functionality: Measures engine coolant temperature and converts it to an electrical signal used by the ECU and dashboard gauge. Compatibility: Designed as a direct replacement for vehicles that use a standard threaded coolant temperature sensor. Verify fit by comparing with your original sensor and OEM part number. Size and design: Compact, threaded body suitable for intake manifold, cylinder head, or thermostat housing installation locations used on compatible engines. Materials and sealing: Metal sensor housing with a thermistor sensing element and a sealed electrical connector to resist vibration, moisture, and corrosion. Performance: Fast response time and stable output across the engine operating range to ensure consistent ECU inputs and fan control behavior. Typical applications Routine maintenance and : a failing or intermittently reporting coolant temperature sensor to restore normal engine management and eliminate related diagnostic trouble codes. Cooling system overhaul: Install a sensor during thermostat or water pump replacement to ensure accurate temperature feedback after cooling system service. Troubleshooting: Swap in a knowngood sensor when diagnosing temperaturerelated faults, hard starting, or irregular idling to confirm whether the sensor or another component is at fault. What to check before ordering Confirm the sensor's connector type and thread size match your original unit. Compare the OEM part number or photograph of your existing sensor to ensure direct fit compatibility. If in doubt, consult a manual or a professional mechanic for correct replacement selection. Installation notes Allow the engine to cool before removing the old sensor. Drain coolant or isolate the sensor location as appropriate for your vehicle to avoid spills. Apply thread sealant or tape if specified by the vehicle manufacturer; do not overtighten the sensor. Refill and bleed the cooling system if coolant was drained, then verify operation by monitoring temperature readings and ensuring no warning lights remain. This engine coolant temperature sensor is intended as a reliable direct replacement to restore proper temperature sensing and engine control. Verify fitment against your original sensor and OEM specifications before .