TIR0046 is a downflow radiator for International trucks, model years 2017 to 2021.
The core measures 34" high by 39.5" wide, 2.25" deep. It has a 2.5" inlet at the left and a 2.5" outlet at the right. The unit carries an oil cooler at the bottom and no filler neck.
It replaces 16 OEM and aftermarket numbers, among them NAV90, 2516107C91, 2516108C91. 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.
