Four (4) Row Radiators? Gimmick or Blessing?

If "fit" is an issue, check fin count per inch. I went to a 5-row count 32 find per inch in a massive increase for a radiator that sits at a 45° angle under my bus. But I had encountered 122° outside temperature on two occasions. The NTC Cummins engine has had no problem achieving 180° coolant temperature near freezing temperatures.

Some knotheads designed radiators with rows all in a line. Good radiators place added rows in a staggered fashion. Adding higher fin count and staggered tube count really oopmps the cooling capacity without the need of changing tanks.