TIR0053 is a crossflow radiator for the International 9900I, model year 2013.
The core measures 35.25" high by 35.125" wide, 3.25" deep. It has a 2.5" inlet at the left and a 2.5" outlet at the right. The unit carries an oil cooler at the left and no filler neck.
It replaces 2 OEM and aftermarket numbers, among them 450378, 450378AT. Searching any one of them will find this part.
On radiators the inlet and outlet positions, and whether the unit carries an oil cooler, decide interchangeability more often than core size does. Two radiators with identical cores are frequently not interchangeable.
