DOC'S DIESEL FUEL FILTERS - Doc's Fuel Filters remove contaminants like separate water from dirt, rust, and debris, protecting fuel system components and ensuring peak engine performance. They optimize fuel flow and pressure, enhancing acceleration, fuel economy, and vehicle performance. With a focus on maximizing filtration media surface area, our high-quality filters come complete with o-rings as needed. INTERCHANGE - Replaces Motorcraft FD4625, Replaces Baldwin PF46174, Replaces Premium Guard DF4624K, Replaces Purolator F71448 FITMENT - Compatible with 2017-2025 Ford 6.7L Powerstroke F250, F350, F450 THIRD PARTY TESTED - 3 Micron @ 96.92% Efficiency Rating REPLACEMENT GUIDELINES - Above all recommendations, change according to your vehicle’s manufacturer warranty. Fuel Filters should be changed every 5,000 to 10,000 miles, or 15,000 maximum. Doc's Fuel Filters remove contaminants like separate water from dirt, rust, and debris, protecting fuel system components and ensuring peak engine performance. They optimize fuel flow and pressure, enhancing acceleration, fuel economy, and vehicle performance. With a focus on maximizing filtration media surface area, our high-quality filters come complete with o-rings as needed. INTERCHANGE: Replaces Motorcraft FD4625, Replaces Baldwin PF46174, Replaces Premium Guard DF4624K, Replaces Purolator F71448. FITMENT: Compatible with 2017-2025 Ford 6.7L Powerstroke F250, F350, F450