Genuine OEM Toyota Radiator Hose, part number 1605737021. This hose is a component of the engine cooling system, responsible for circulating coolant between the engine and the radiator. It is located in the engine compartment. With a weight of 0.363 kg, this hose is designed for optimal coolant flow and durability. Genuine OEM ensures the correct material composition and routing geometry for reliable performance and longevity.