The TR 6013 is an all aluminum radiator designed for Triumph TR250’s, TR6’s, and TR5’s. These radiators are built in America using the latest in aluminum brazing technology which requires no epoxy. This makes them far superior to similar radiators made using epoxy. The core has two rows of tubes and measures 16.38 inches from header to header, 16.49 inches from side to side, and 2.25 inches thick. Both the inlet and outlet measure 1.25 inch.