Genuine VW/Audi Crankcase Breather Hose - 06A103221AN: Genuine VW/Audi crankcase breather hose is a direct replacement for your vehicle. It is designed to provide superior performance and durability. This hose is made from high-quality materials to ensure it lasts for many miles. It will help keep your engine running smoothly and efficiently. This part is a direct fit for your vehicle and is an OEM replacement part.