Xtrude Transmission Cooler w/ Fan - Complete Kit 5/8" Lines (1030606-5/8)The BD Diesel Xtrude Transmission Cooler with Fan is a complete kit engineered for superior cooling performance, providing 22% more cooling over other designs. The cooler core features 200 Micro Extruded passages that create a large surface area to efficiently transfer heat for external airflow cooling. Its turbulent oil flow design promotes a more complete and effective cooling process. The cooler utilizes large 5 8 inch ports to prevent inlet outlet