BD’s Xtruded Transmission Oil Coolers use high efficiency Micro Extruded bar technology that provides 22 percent more cooling over other designs. The 200 Micro Extruded passages provide a large surface area to transfer heat for external air flow cooling while turbulent oil flow design promotes a more complete cooling. A 10-inch thermostatically controlled 800 CFM electric fan offers ultimate automatic oil temperature control. Install packages can accommodate from 5/16 to 5/8 transmission cooler lines and come complete with all fittings, clamps, hoses, hardware and a build-it-yourself galvanized bracket kit for quicker and cleaner installation. Rated at in excess of 30,000 GVW, the Xtruded Transmission Oil Cooler is for Dodge, Ford and Chevy diesel automatic transmissions. (www.dieselperformance.com/800-887-5030)