TIR0018 is a radiator for International trucks, model years 1995 to 2004.
The core measures 0" high by 0" wide, 0" deep. It has a 0" inlet and a 0" outlet.
It replaces 2 OEM and aftermarket numbers, among them 1697740C2, 1A1789. 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.