Radiator Core Size: The height and width of the central part of the radiator, between the tanks and the side pieces. Consists of parallel rows of tubes and fins.
Rows: The number of rows refers to the number of parallel rows of tubes in the core.
When ordering a four-row radiator for a truck that was originally equipped with a two- or three-row radiator, it is necessary to modify the top mount brackets to fit the larger radiator core. New support pads will also need to be purchased, #32-0972 x 4.