The part is used in the engine cooling and lubricating systems, hydraulic power steering, and transmission. It is designed to reduce the temperature of coolant or oil. The radiator consists of two tanks and a core between them. The core is made of many tubes through which the fluid flows. They are soldered to the plate fins or corrugated fins that come into contact with air and ensure heat dissipation. Cooling is achieved due to on-coming air flow during car movement. Sometimes a fan is used additionally.