Tube and Fin: it has a tube that allows the transmission fluid to flow to the aluminum fins that disperse the heat and cool it.Beside,This is the least expensive and simplest type of transmission cooler.
4 Rows Universal Aluminum Remote Transmission Oil Cooler Kit, 12-3/4" x 5" x 3/4
4 Rows Universal Aluminum Remote Transmission Oil Cooler Radiator Converter Kit
8 Rows Universal Aluminum Remote Transmission Oil Cooler Radiator Converter Kit