A Radiator Hose can be defined as a large-diameter rubber hose which carries the engine coolant between the engine and radiator and then further to the water pump. This is an important cooling system. There are two kinds of radiator hoses, the upper radiator hose which connects to the top of the engine and the lower radiator hose which is connected to the end of the radiator and the engine pump. Since these are made of rubber usually, over time, these tend to harden and dry out. The symptoms of the coolant starts leaking are when the AC is not functioning well or steam pours out of the engine compartment. Check our Online Car Spare Parts store to buy Radiator Hose from the best quality brands. In case of any query, do get in touch with us.