TIR0013 is a crossflow radiator for International trucks, model years 2002 to 2009.
The core measures 20.5" high by 26.1875" wide, 2.25" deep. It has a 2.25" inlet at the left and a 2.25" outlet at the right. The unit carries an oil cooler at the right and no filler neck.
It replaces 172 OEM and aftermarket numbers, among them NAV12, 1S180001, 1S180024G. 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.