TKC0015 is a crossflow charge air cooler for the Kenworth T800, model years 1996 to 2007.
The core measures 44.125" high by 24.5" wide, 2.25" deep. It has a 0" inlet and a 0" outlet. There is no integral oil cooler and no filler neck.
It replaces 10 OEM and aftermarket numbers, among them KEN16514, KEN16514N, KEN16514R. 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.