Genuine OEM Nissan Rear ABS Sensor, part number 479006FR2A. This sensor is responsible for monitoring the rotational speed of the rear wheels, providing essential data to the Anti-lock Braking System (ABS) and Vehicle Dynamic Control (VDC) systems. It is installed on the rear axle assembly and fits both the right and left sides. Genuine Nissan ABS sensors are calibrated for precise signal output, ensuring optimal performance of safety systems.