This ASHIKA coolant temperature sensor, part number 64-05-501, is designed to provide precise measurements of your engine's coolant temperature. Accurate temperature data is crucial for the engine control unit (ECU) to manage fuel injection, ignition timing, and cooling fan operation, thereby maintaining optimal engine performance and preventing overheating. Engineered to meet or exceed original equipment specifications, this sensor offers reliable and consistent performance. Its direct-fit design ensures easy installation, replacing your old or faulty sensor without the need for modifications. Trust ASHIKA for quality components that keep your vehicle running smoothly.