Genuine OEM Audi Taillight Bulb Holder, part number 8J0945257A. This component is designed to securely hold the taillight bulbs in their correct positions within the left rear taillight assembly. Made from durable plastic, it weighs approximately 0.45 kg. Using a genuine OEM bulb holder ensures proper electrical contact, heat dissipation, and a precise fit within the taillight housing, which is critical for reliable lighting performance and safety.