Genuine OEM Audi Gearbox Support, part number 420399115E. This component secures the gearbox to the vehicle chassis, absorbing vibrations and supporting the transmission's weight. It is mounted between the gearbox and the vehicle frame. This support is typically made of metal and rubber components. Genuine OEM gearbox mounts are engineered with specific material properties and load capacities to ensure proper vibration isolation and long service life.