Genuine OEM Audi Rear Suspension Crossmember Insulator, part number 1EA505145R. This component is a vital part of the rear suspension system, designed to isolate the suspension crossmember from the vehicle chassis. Its primary function is to reduce the transmission of road vibrations and noise into the cabin, significantly improving ride comfort and reducing wear on other suspension components. This insulator is positioned at the rear of the vehicle and weighs approximately 0.9683 kg. Opting for a genuine OEM insulator ensures the factory-specified rubber compound and design, providing optimal vibration damping, noise reduction, and maintaining correct suspension geometry for a stable and comfortable driving experience.