TVC0012 is a crossflow charge air cooler for the Volvo WG, model years 1990 to 1993.
The core measures 34.5" high by 23.5" wide, 2.8125" deep. It has a 4" inlet at the left and a 4" outlet at the right. There is no integral oil cooler and no filler neck.
It replaces 58 OEM and aftermarket numbers, among them VOL18802, VOL18802N, VOL18802R. 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.