Doc's Diesel Fuel Filter for Ford 6.7L Powerstroke F250/F350/F450 (2017+) — DFD4625, 3-micron 96.92% efficiency

Doc's Diesel DFD4625 is a direct-replacement fuel filter designed to protect Ford 6.7L Powerstroke F250, F350, and F450 engines (2017+) by removing water, dirt, rust, and debris from diesel fuel.

This replacement filter is engineered to match OEM fitment and filtration performance for late-model Ford 6.7L Powerstroke trucks. Built with an emphasis on maximizing filtration media surface area and supplied with the required o-rings, the DFD4625 provides a high-efficiency barrier against contaminants that can harm fuel system components. It is third‑party tested to a 3-micron rating at 96.92% efficiency and cross-references common part numbers so you can swap it into existing service routines with confidence.

How does this filter protect my Powerstroke on daily drives?

The DFD4625 captures tiny particulates and separates free water before fuel reaches injectors and pumps, reducing wear and preserving performance. Cleaner fuel helps maintain steady fuel flow and pressure, which supports smoother acceleration and consistent engine response.

• 3-micron media rated 96.92% efficiency for fine particle capture
• Water separation to prevent corrosive damage to injectors
• Designed to maintain proper fuel pressure and flow characteristics

Will this filter fit my truck and replace my current part number?

Yes — the DFD4625 is compatible with 2017–2025 Ford 6.7L Powerstroke F250, F350, and F450 models and is engineered as a direct interchange for several established part numbers. It replaces Motorcraft FD4625 and cross-references Baldwin, Premium Guard, and Purolator equivalents.

• Direct replacement for Motorcraft FD4625
• Cross-reference: Baldwin PF46174, Premium Guard DF4624K, Purolator F71448
• Includes necessary o-rings for straightforward installation

How often should I change the Doc's Diesel DFD4625 filter?

Service frequency depends on driving conditions and your vehicle warranty requirements. Follow the vehicle manufacturer's recommendations first; as a general guideline, change fuel filters every 5,000–10,000 miles, with 15,000 miles as a maximum interval under less demanding conditions.

• Use manufacturer warranty guidance as primary reference
• Typical replacement: every 5,000–10,000 miles
• Maximum suggested interval: up to 15,000 miles in light-duty use

What testing and performance assurances does this filter offer?

Doc's Diesel filters undergo independent verification to confirm filtration efficiency and micron rating. The DFD4625 is third‑party tested to remove fine particulates while maintaining flow characteristics appropriate for modern common-rail diesel systems.

• Third-party test: 3 micron at 96.92% efficiency
• Media optimized for maximum surface area and longevity
• Manufactured to meet or exceed typical OEM specifications

Who this is for: Doc's Diesel DFD4625 is made for Ford 6.7L Powerstroke owners who want a reliable, high-efficiency replacement fuel filter that matches OEM fit and filtration performance. It’s suitable for fleet operators, pickup owners who tow or haul, and anyone who prefers a tested aftermarket alternative that provides strong contaminant and water separation without compromising fuel system operation. If you maintain your truck to factory schedules or push service intervals under controlled conditions, this filter is a practical upgrade for preserving fuel-system longevity and on-road drivability.