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.
6 Pass Tube and Fin Transmission Cooler Universal 5/16" Oil Cooler Kit Aluminium
Universal 5/16" Transmission Oil Cooler 6 Pass Tube+Fin Cooler Kit Aluminum
Aluminium Universal 6 Pass Tube And Fin Kit Transmission Oil Cooler 5/16" Set.US
Derale 6 Pass Econo-Cool Tube & Fin Replacement Cooler, 1/2" Barb Inlets
