TIR0016 is a downflow radiator for International trucks, model years 2004 to 2008.
The core measures 29.25" high by 32.75" wide, 2.25" deep. It has a 2.5" inlet at the right and a 2.5" outlet at the left. There is no integral oil cooler and no filler neck.
It replaces 65 OEM and aftermarket numbers, among them NAV18, 052080067, 1S180035. 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.