JEGS heavy duty 1-1/2" thick engine oil cooler features copper header and tube construction with an inner-swirl turbulator for maximum flow and cooling efficiency. Rated @ 10900 cooling BTU/HR @ 2500 FPM airflow. Single pass headered unit minimizes pressure loss. Includes 1/2" NPT female inlet and outlet ports to simplify plumbing and vibration absorbing rubber block mounting. Overall size is 6-1/2"H x 18"L x 1-1/2". Sandwich oil filter adapter kits sold separately.