Single-Pass Bar-Plate 612/613 Series Engine Oil Cooler, 15 in. x 11.75 in. x 7 in., 0.5 in. NPT Fittings, w/ 11 in. HP Spal Fan|Fluidyne OGEN.DB-30612.SP.FXL Single-Pass Bar-Plate 612/613 Series Oil Cooler, 15 in. x 11.75 in. x 7 in., w/ 11 in. HP Spal Fan.