Doc's Diesel Filter Kits: Doc’s Diesel Filter Kits save you time and money by giving you the filters you need in one convenient package. No more running around trying to find the right parts. Just grab a kit and get the job done! Swapping filters on time keeps your truck running strong and efficient, and with our Filter Kits, it’s easier than ever. Product Details: View each item for individual product specs. Includes 1 Fuel/Water Separator and 1 Oil Filter Doc's Ford 6.0L Powerstroke Fuel/Water Separator 2003-2007 Doc's Ford 6.0L/6.4L Powerstroke Oil Filter 2003-2010 Doc's Auto Parts all have an OEM design, fit, and function that meet or exceed OEM Requirements Micron + Efficiency Rating: Doc's Ford 6.0L Powerstroke Fuel/Water Separator 2003-2007: 3 Micron @ 96.92% Efficiency Rating - Efficiency SAE J1985 3rd-Party Test Results Doc's Oil Filter: 25 Micron @ 99% Efficiency Rating Fitment + Interchange: Vehicle Fitment: 2003-2007 Ford 6.0L Super Duty F250, F350, F450, F550 2003-2005 Ford 6.0L Excursion Interchange: Doc's Ford 6.0L Powerstroke Fuel/Water Separator 2003-2007 DCS9667: Motorcraft FD4616, Wix 33899, Baldwin PF7812, Premium Guard DF9667A, Purolator FS5590 Doc's Ford 6.0L/6.4L Powerstroke Oil Filter 2003-2010 D5526: Motorcraft FL2016, Wix 57312, Baldwin P7235, Premium Guard PG5526, Purolator L45526 Doc's Part Number: DCS9667+D5526 Change Interval: Above all recommendations, change according to your vehicle’s manufacturer's warranty. Fuel/Water Separators: Every 5,000-10,000 miles or 15,000 miles maximum Oil Filters: Every 5,000-7,000 miles or 10,000-15,000 miles maximum