The K&N PF-4700 is a cartridge-style replacement fuel filter for the 6.7L Power Stroke V8 diesel in 2011-2016 Ford Super Duty trucks. The manufacturer's fitment pages list it for the 2011 F-350 and the 2016 F-250 and F-350 with the 6.7L V8 diesel, so confirm your exact year and cab with K&N before ordering. Owners searching for a PF-4700 diesel fuel filter or a 6.7 Powerstroke filter replacement should know this is a diesel-only part. Stock filters for this engine are a regular service item, and a K&N cartridge gives you a known brand in the same factory location. The main reason to buy it is the labor you save: owners on user forums have described dealer fuel filter service at roughly $280, while the DIY job takes an afternoon.
Fuel filter changes on the 6.7 involve two housings, one of them under the hood, and a bit of spillage. Owners on user forums report that an engine-side filter can be tight to remove, and that the job goes more smoothly with the right socket and a clean o-ring seat. After the swap, most of the work is in priming the system so the truck starts cleanly. Plan for the 6.7 fuel filter change, PF-4700 install, and Powerstroke fuel priming steps to be part of the same job.
No. The manufacturer lists this filter only for the 6.7L V8 diesel application.
Owners on user forums report cycling the ignition to run the lift pump for about 30 seconds at a time, several times, before cranking. Some owners who skipped this step reported long cranking and a low fuel pressure warning. Confirm the priming procedure with the manufacturer for your model year.
Difficulty is moderate and the main challenge is fuel spillage and tight housings rather than complex wiring. Owners on user forums suggest a 7mm socket for the clamp on the upper filter and loosening the housing about three turns before draining, so the bowl empties without fuel running freely from the tank. Lubricate the sealing surface and the o-ring before seating the new cartridge, then tighten until the cap reaches its stop. Watch the drain plug o-ring, which owners report can fall out during service. Let the fuel cool before you start, since owners warn that fuel is hot after driving. Prime the system as described above before attempting to start the engine.
