TMR0007 is a downflow radiator for the Mack RD, model years 1997 to 2004.
The core measures 27.5" high by 34.6875" wide, 2" deep. It has a 2" inlet at the left and a 2.5" outlet at the right / bottom. There is no integral oil cooler and no filler neck.
It replaces 63 OEM and aftermarket numbers, among them MAC07, 1003508-F, 1102080. 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.
