Genuine OEM Kia Camshaft Position Sensor, part number 3935003040. This essential sensor monitors the precise rotational position of the engine's camshaft, sending critical data to the engine control unit (ECU). This information is vital for accurate engine timing, fuel injection, and ignition control, ensuring optimal engine performance and efficiency. It is typically located near the camshaft or cylinder head. Choosing a genuine OEM sensor guarantees exact calibration, correct signal characteristics, and robust construction for reliable operation and seamless integration with the vehicle's engine management system.