TFR0046 is a downflow radiator for Freightliner trucks, model years 2003 to 2010.
The core measures 27.375" high by 25.4375" wide, 2.25" deep. It has a 2" inlet at the left and a 2" outlet at the right. The unit carries an oil cooler at the bottom and no filler neck.
It replaces 167 OEM and aftermarket numbers, among them FRE27, 1003557, 1003564. 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.
