Genuine OEM Lexus Radiator Hose, part number 1657236160. This hose is designed to transport coolant between the engine and the radiator, playing a crucial role in the engine's cooling system. It is positioned as the second radiator hose in the assembly. Constructed from durable rubber, it ensures reliable performance and longevity. Genuine OEM parts are essential for radiator hoses to maintain precise dimensions and material integrity, preventing leaks and ensuring optimal coolant flow.