TIR0038 is a crossflow radiator for the International 5900I, Paystar 5600I, model years 2008 to 2011.
The core measures 29.375" high by 37.125" 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 32 OEM and aftermarket numbers, among them NAV45, 1S180189, 2592280C91. 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.
