Genuine OEM Audi Power Steering Return Hose, part number 4H0422891L. This vital component is responsible for safely returning hydraulic fluid from the power steering rack or pump back to the power steering fluid reservoir. It is an integral part of the hydraulic power steering system, ensuring continuous fluid circulation. The hose measures 0.47 meters in length and weighs 0.143 kg, constructed from materials designed to withstand high pressure, temperature, and corrosive power steering fluid. Using a genuine OEM hose guarantees the correct routing geometry, material composition, and pressure resistance, preventing leaks and ensuring the longevity and proper function of the entire power steering system.