2 Pass 24" Series 7000 Copper/Aluminum Frame Rail Transmission Cooler, 11/32"With the same 1 2" copper tubing expanded into aluminum cooling fins and embossed turbulators as our larger transmission coolers, this cooler uses a slim design to enable frame mounting in limited space applications. This kit comes with a complete transmission cooler hardware kit to easily install onto vehicles with 5 16" transmission cooler lines. Perfect for light duty use and occasional light towing.