Premium Guard DF9667A Diesel Fuel Filter | Fits 2005-2003 Ford Excursion; 2007-2003 F-250 Super Duty, F-350 Super Duty, F-450 Super Duty, F-550 Super Duty; 2010-2006 LCF Premium Guard Diesel Fuel Filters are highly efficient in filtering diesel fuel system contaminants to meet modern diesels engine demands for optimum fuel flow which ensures the system is free of contaminants and water. Premium Guard Diesel Fuel Filters are engineered and tested to original equipment diesel manufacturer's fit, form, and function. Premium Guard Diesel Fuel Filters meet and exceed the specifications for maintaining new vehicle warranties. Compatible with Ford Excursion 2005-2003, F-250 Super Duty 2007-2003, F-350 Super Duty 2007-2003, F-450 Super Duty 2007-2003, F-550 Super Duty 2007-2003, LCF 2010-2006. Replaces 3C3Z-9N184CB, CS9667, L4604F, F55590, and 33899 diesel fuel filters.