25-5/16 in. x 31 in. x 2-3/16 in. Core 3-15/16 in. Inlet / 3-15/16 in. Outlet
2001 Freightliner FL50 equipped with 7.2L L6 Diesel Turbo, 6.4L L6 Diesel Turbo, 4.3L L4 Diesel Turbo
25-5/16 in. x 31 in. x 2-3/16 in. Core 3-15/16 in. Inlet / 3-15/16 in. Outlet