TMR0006 is a downflow radiator for the Mack LE600, model years 1999 to 2007.
The core measures 39" high by 26.8125" wide, 2.75" deep. It has a 2" inlet at the right / top and a 2.5" outlet at the left. The unit carries an oil cooler at the bottom and no filler neck.
It replaces 38 OEM and aftermarket numbers, among them MAC13, 1003303, 1003521. 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.
