Genuine OEM Audi Air Cleaner Filter Adapter, part number 8K0133426A. This component is designed to provide a secure and sealed connection between the air cleaner filter and the engine's intake system, ensuring only filtered air enters the engine. It is positioned within the air intake assembly. Made from durable black plastic, it measures approximately 60mm in length. Using a genuine OEM adapter ensures precise fitment and material quality, critical for maintaining optimal engine performance and filtration efficiency.