Genuine OEM Audi Lower Radiator Hose, part number 8E0121049L. This essential component is part of the engine cooling system, responsible for carrying cooled fluid from the radiator back to the engine to maintain optimal operating temperatures. It is positioned as the lower connection between the radiator and the engine. Weighing 0.584 kg and measuring 0.46m x 0.22m x 0.15m, this hose is constructed from durable, heat-resistant materials. Genuine OEM hoses provide the exact routing geometry, correct internal diameter, and material composition to withstand engine bay temperatures and pressures, preventing leaks and ensuring long-term cooling system reliability.