Genuine OEM Toyota Radiator Hose No.2, part number 165720X030. This hose is part of the engine's cooling system, typically connecting the engine to the radiator or other cooling system components. It is designed to handle the flow of coolant under various temperature and pressure conditions. Constructed from durable, heat-resistant rubber for reliable operation. Genuine OEM parts guarantee precise fitment and material integrity, crucial for maintaining the efficiency and longevity of your cooling system.