Fuel Filter Element, Filter Design , Set of 2 Fuel Elements, Height 5 1/4 in, Length 5 1/4 in, Width 4 9/32 in, Inlet Secondary 1/2 in, Outlet Secondary 1/2 in, Outside Dia. 4 9/32 in, Inside Dia. 1-3/8 in and Secondary: 3-15/16 in, Includes Attached Gasket, O-Ring, For Use With 2011-on Ford Super Duty Trucks, Thread Size Not Applicable