TFR0026 is a downflow radiator for the Freightliner Cascadia PX, Century Class 112/120, Columbia 112/120, model years 2008 to 2015.
The core measures 42.125" high by 38.625" wide, 2" deep. It has a 2.5" inlet at the right and a 2.5" outlet at the right. The unit carries an oil cooler at the bottom and no filler neck.
It replaces 125 OEM and aftermarket numbers, among them FRE68, 0524936000, 0524936002. 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.