This DELPHI coolant temperature sensor, part number TS10629-12B1, is designed to provide precise monitoring of your engine's coolant temperature. Accurate temperature readings are crucial for the engine control unit (ECU) to manage fuel injection, ignition timing, and cooling fan operation, thereby ensuring optimal engine performance and fuel economy. Engineered to meet or exceed original equipment specifications, this sensor offers reliable and consistent performance. Its robust construction is built to withstand the harsh operating conditions within the engine bay, including exposure to heat, vibration, and coolant. Replacing a faulty coolant temperature sensor can resolve issues such as poor starting, rough idling, decreased fuel efficiency, and overheating. This DELPHI sensor is a direct replacement, simplifying the installation process and restoring your vehicle's cooling system to its intended functionality.