Contains: [2] Fuel Filters (Not Sold Separately) Outside Diameter: 3 5/8" Inside Diameter: 1" (One End) Length: 7 13/32" Notes: Longer Element: O.D. 3 5/8"; I.D. 7/16" & 1 1/2"; Length 10 3/8" O-ring: [2] Included Application: 2023-24 Kenworth and Peterbilt Trucks with MX11, MX13 Engines