TKR0009 is a radiator for the Kenworth T2000.
The core measures 37.625" high by 22.9375" wide, 2.25" deep. It has a 0" inlet and a 0" outlet. There is no integral oil cooler and no filler neck.
It replaces 5 OEM and aftermarket numbers, among them 451750, 451750AT, 3S52630MMC. 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.
