Genuine OEM Audi Upper Rear Control Arm, part number 4E0407510E. This critical suspension component connects the wheel hub to the vehicle frame, playing a vital role in maintaining proper wheel alignment and suspension geometry. It is an upper control arm for the rear suspension assembly. Measuring 0.31 m in length and weighing 0.615 kg, this control arm is constructed from durable materials for high strength. Using a genuine OEM control arm ensures precise suspension geometry, optimal handling characteristics, and long-term structural integrity.