TKR0017 is a downflow radiator for Kenworth trucks.
The core measures 32.875" high by 29" wide, 2.5" deep. It has a 2.5" inlet at the top left and a 0" outlet at the center. The unit carries no integral oil cooler and a top filler neck.
It replaces 16 OEM and aftermarket numbers, among them 650031, 650031BT, 239094. 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.