TPC0012 is a charge air cooler for the Peterbilt 379.
The core measures 35" high by 30.125" wide, 3.5" deep. It has a 0" inlet and a 0" outlet. There is no filler neck.
It replaces 5 OEM and aftermarket numbers, among them 280310, 280310N, 280310R. Searching any one of them will find this part.
On charge air coolers the inlet and outlet positions and the boot diameters matter as much as the core. A cooler that fits the opening but presents its connections on the wrong side will not plumb up.