Vehicle Fitment: E-series 2004, 2006-2007 Excursion 2003-2005 F-250 2003-2008 F-350 2003-2004, 2006-2008 F-450 2003-2008 F-550 2003-2008 Replacement transmission filters remove contaminants from the fluid, to help the transmission operate as designed. Motorcraft Automatic Transmission Filters are designed, engineered and tested to help ensure peak transmission performance throughout the li Why Buy: -The only parts recommended by Ford Motor Company for Ford, Lincoln and Mercury vehicles. -Each filter meets the specific needs of its application and intended service life. -Filtration efficiency is fine tuned to match transmission fluid cleanliness requirements to help ensure transmission durability throughout the intended life cycle. -Filters are engineered to maintain fluid flow rates even as wear debris accumulates. -Filter housings are constructed from advanced fiber reinforced temperature-resistant polymers or a combination of polymers and stamped steel. -In most cases, new pan gaskets are not needed when performing transmission filter service. -All Motorcraft Automatic Transmission Filters are performance tested to meet Ford standards for each application. -Filter media strength is tested to withstand the most extreme dirt loads under extreme wear conditions at elevated temperatures. -Filtration and hydraulic performance testing is performed according to procedures approved by the International Organization for Standardization.