Genuine OEM Audi Front Left Wheel Bearing Housing, part number 4F0407253H. This critical suspension component, also known as a steering knuckle, provides the mounting point for the wheel bearing assembly, brake caliper, and connects the wheel to the suspension and steering systems. It is specifically designed for the front left side of the vehicle. Weighing approximately 5.17 kg, this housing is engineered for strength and precision. Choosing a genuine OEM wheel bearing housing ensures precise geometry, correct material composition for durability, and proper alignment of suspension and steering components, which is vital for safe handling and tire wear.