TIR0031 is a crossflow radiator for International trucks, model years 2008 to 2014.
The core measures 46.25" high by 35.75" wide, 2.25" deep. It has a 2.5" inlet at the left and a 2.5" outlet at the right. There is no integral oil cooler and no filler neck.
It replaces 16 OEM and aftermarket numbers, among them NAV38, 1S180263, 2604145C91. 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.
