The radiator is the heat exchanger at the front of the cooling system. Hot coolant flows through its thin tubes and fins, and air passing through — from vehicle speed or the cooling fan — carries that heat away. Everything else in the cooling system exists to get coolant to the radiator and back, so when the radiator can't shed heat, the engine runs hot no matter what the rest of the system does.
Radiators fail in a few recognizable ways: the tubes or plastic end tanks develop leaks, internal passages corrode or clog and reduce flow, or the fins get damaged and stop releasing heat efficiently. At New Concept, we confirm the radiator is the real problem — not a hose, a cap, or a pump — and when replacement is the right call, we install a quality unit and refill the system properly so you're not back for air pockets or a recurring leak.
