Genuine OEM Volkswagen Nox Sensor, part number 03N907807AC. This sensor is crucial for monitoring nitrogen oxide (NOx) levels within the exhaust system. It plays a vital role in the vehicle's emissions control system, ensuring compliance with environmental regulations and optimizing engine performance. Positioned in the exhaust stream, it measures NOx concentrations to inform the engine control unit. The sensor has a weight of 0.294 kg and dimensions of 0.208m x 0.105m x 0.045m. Genuine OEM sensors are manufactured to exact specifications, guaranteeing precise readings and long-term durability for optimal emissions management.