13351, 21820, 22966122, 22966124, 24-81213, 2481213, CU13350, DP-13351, DP-13351C, DP13351, DP13351C, RA 13351C, RA13351. Radiators are an important part of the engine's cooling system. The main function of the radiator is to extract and dissipate heat from the engine.