Genuine OEM Audi Oil Pressure Line, part number 4E0317821M. This critical component is responsible for transporting oil under pressure, ensuring proper lubrication and cooling throughout the engine system. It connects to the oil cooler and other engine components, facilitating efficient oil circulation. Weighing approximately 0.34 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 resistance to degradation, preventing leaks and maintaining optimal engine performance.