TPR0011 is a downflow radiator for the Peterbilt 379.
The core measures 36.25" high by 34.5" wide, 2.25" deep. It has a 0" inlet and a 0" outlet. There is no filler neck.
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.