The Derale Plate and Fin Coolers feature strong furnace-brazed construction, 7/8" wide plates, and 3/4" embossed turbulators which maximize heat transfer while also minimizing pressure drop. These coolers greatly extend transmission life by preventing heat-related transmission failures, and improve overall shifting performance. Kits come with complete transmission cooler hardware to easily install onto vehicles with 5/16" transmission cooler lines.