Radiator has special top tank design which helps in dearation , venting during initial fill and ensures a positive pressure head on the inlet of Water Pump. Radiator Coreare provided with fins around tubes so as to increase the surface area. Radiator Cap to maintain positive pressure on system during operation , elevate boiling point and prevention from vacuum to be created when system cools down. Radiator Fan to assist air flow between radiator tubes and engine.