Doc's Diesel Filter Sets: Doc's Diesel Filter Sets bundle exactly what your service calls for — sourced to spec, packed together, ready to install. Skip the separate orders and mismatched parts. Swapping filters on time keeps your truck running strong and efficient, and Filter Sets make staying on schedule simple. Product Details: View each item for individual product specs. Includes 1 Fuel Filter, 1 Oil Filter, 1 Engine Air Filter Doc's Ford 7.3L Powerstroke Fuel Filter w/ Cap 1999-2003 Doc's Ford 7.3L Powerstroke Oil Filter 1994-2003 Doc's Ford 7.3L Powerstroke Air Filter 2000-2003 Doc's Auto Parts all have an OEM design, fit, and function that meet or exceed OEM Requirements Micron + Efficiency Rating: Doc's Ford 7.3L Powerstroke Fuel Filter w/ Cap 1999-2003: 3 Micron @ 96.92% Efficiency Rating - Efficiency SAE J1985 3rd-Party Test Results Doc's Oil Filter: 25 Micron @ 99% Efficiency Rating Doc's Engine Air Filter: 99.25% / 344.2G Dust Holding Capacity - Efficiency ISO 5011 3rd-Party Test Results Doc's Part Number: DCS8629OE+D4872+DPA5446 Change Interval: Above all recommendations, change according to your vehicle’s manufacturer's warranty. Fuel Filters: 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 Engine Air Filters: Every 5,000-10,000 miles or 12,000 miles maximum