TPC0009 is a charge air cooler for the Peterbilt 357, 379, 385, model years 1987 to 1990.
The core measures 25" high by 27.25" wide, 2.625" deep. It has a 4.5" inlet and a 4.5" outlet.
It replaces 40 OEM and aftermarket numbers, among them CAC101, 0514968, 0515020M. 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.