Genuine OEM Audi Secondary Air Pump Heat Shield, part number 4H0131783D. This metal shield is specifically designed to protect the secondary air pump from high temperatures generated by the engine or exhaust system. By deflecting heat, it helps maintain the pump's operational efficiency and extends its lifespan within the emissions system. Weighing approximately 0.045 kg, it is a lightweight yet crucial protective component. Using a genuine OEM heat shield ensures precise fitment and effective thermal management, critical for the longevity of sensitive components.