TKR0012 is a crossflow radiator for the Kenworth T800, model years 1995 to 2007.
The core measures 45.75" high by 32.75" wide, 2.5" deep. It has a 2.5" inlet at the left and a 2.5" outlet at the right. The unit carries no integral oil cooler and a top filler neck.
It replaces 16 OEM and aftermarket numbers, among them 650023, 650023BT, 6523. 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.
