Genuine OEM Audi Radiator Coolant Hose, part number 9J1121623. This hose is a vital component of the engine cooling system, responsible for transporting hot coolant from the engine to the radiator and returning cooled fluid. Its specific routing and material composition are engineered to withstand high temperatures and pressures. Weighing 0.157 kg with dimensions of 0.29m x 0.1m x 0.09m, this genuine OEM hose ensures precise fitment and resistance to degradation, preventing leaks and maintaining efficient engine cooling.