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.
Aluminium Universal 8 Pass Tube And Fin Kit Transmission Oil Cooler 5/16" Set.US
6 Pass Tube and Fin Transmission Cooler Universal 5/16" Oil Cooler Kit Aluminium
6 Pass Tube & Fin Aluminium Transmission Oil Cooler Universal 5/16 Inch Kit
Universal 5/16" Transmission Oil Cooler 6 Pass Tube+Fin Cooler Kit Aluminum
