Shop Coolant Temperature Sensors. Find Engine Coolant Temperature Sensor & Sensor Location. Get Coolant Temperature Sensors Replacement Cost. Maintaining the health of your car's coolant temperature sensor is crucial for ensuring peak engine performance and longevity. Regularly inspecting for corrosion and ensuring clean connections can prevent malfunctions. If you experience erratic temperature readings or check engine lights, it's likely time for a replacement. Our online selection offers a range of high-quality sensors, from brass for superior conductivity to durable plastic models, all designed to seamlessly integrate with your vehicle's system. Easily find the perfect fit for your car with our user-friendly interface and enjoy hassle-free installation with our precision-engineered components.