BD Diesel has now double stacked their proven Xtruded Trans Oil cores to deliver over 40,000 BTU/HR of cooling and over 350% temperature drop versus the factory system - 136% better temperature drop than BD's standard single core kit.

Using the same Micro Extruded bar technology as is in the air-to-air Charge Air Coolers, the 200 Micro Extruded passages in each cooler (400 total) provide a large surface area to transfer heat for external air flow cooling while turbulent oil flow design promotes a more complete cooling.

Large 5/8-inch ports prevents inlet/outlet restriction and furnace brazed rails have been tested to 300psi of pressure. The thermostatically controlled 80-watt, 10-inch, 800 CFM electric fan offers ultimate automatic oil temperature control.