Genuine OEM Toyota Radiator Hose No. 2, part number 16572F0150. This hose is a critical component of the engine's cooling system, responsible for carrying coolant between the radiator and the engine. It is typically located on the lower or upper side of the radiator assembly. Genuine OEM hoses are constructed from durable, heat-resistant materials designed to withstand the high temperatures and pressures within the cooling system, ensuring a long service life and preventing leaks.