Genuine OEM Audi Rear ABS Wheel Speed Sensor, part number 8E0927807G. This sensor plays a vital role in the anti-lock braking system (ABS) by precisely measuring the rotational speed of the wheel. It is installed at the rear wheel hub assembly. The sensor transmits data to the ABS control module, enabling the system to prevent wheel lock-up during braking. Weighing approximately 0.26 kg, this sensor is engineered for accuracy and reliability. Using a genuine OEM sensor ensures correct signal calibration and robust construction, which is essential for the proper function of critical safety systems like ABS and ESP.