Genuine OEM Audi Oil Filter Oil Pressure Line, part number 8K0317823B. This critical component is responsible for transferring pressurized engine oil to the oil filter, ensuring proper lubrication and filtration for engine longevity. It consists of rigid metal piping and a flexible hose section to accommodate engine movement. Using a genuine OEM oil line guarantees the correct routing geometry, pressure resistance, and material compatibility with engine oil, preventing leaks and maintaining consistent oil pressure.