Genuine OEM Audi Vane Pump Expansion Hose, part number 4E0422893L. This critical hose connects the vane pump to the power steering expansion tank, facilitating the flow of hydraulic fluid essential for power steering assistance. It is designed with specific bends and fittings to ensure correct routing within the engine bay. Weighing 0.619 kg, this hose is constructed from durable metal and rubber components to withstand high pressures and temperatures. Choosing a genuine OEM hose ensures precise fitment, leak-free operation, and the correct material resistance for long-term reliability of the power steering system.