Genuine OEM Audi Oil Pressure Line, part number 3D0317815D. This critical component is designed to transport oil under pressure within the engine's lubrication system, ensuring that vital engine components receive adequate oil flow for cooling and lubrication. It is part of the oil cooler assembly. Weighing 0.395 kg, this line is constructed to withstand high pressures and temperatures. Choosing a genuine OEM oil pressure line ensures correct routing geometry, material integrity, and leak-free connections, which are crucial for maintaining engine oil pressure and preventing catastrophic failures.