Riffraff Diesel Technical Knowledge Center
6.0L Fuel Filter Set for 2003-2007 Powerstroke
Sep 22nd 2026
The 6.0L Powerstroke fuel system uses two filters: a primary filter in the frame-mounted HFCM and a secondary filter on top of the engine. It's good practice to service them together.
Riffraff D
… read more
OEM 7.3 Powerstroke Fuel Filters for 1994-2003
Sep 16th 2026
The 7.3 Powerstroke fuel filter is one of the cheapest parts on the truck, but it protects one of the most expensive systems. A restricted or poor-quality filter can reduce fuel pressure, cause rough
… read more
Top 10 Hard-to-Find or Discontinued Powerstroke Parts Owners Should Replace Before They Disappear
Jun 10th 2026
Older Powerstrokes are great because they’re simple, durable, and still worth fixing. The downside? Some of the factory parts are getting harder to find, more expensive, discontinued, obsolete,
… read more
International T-442 RTV Silicone (1830858C1): the OEM grey sealant 7.3 owners actually trust
Apr 15th 2026
If you’ve ever scraped factory RTV off a 7.3 and thought, “Why can’t all sealant work like that?”—you’re thinking of International T-442 RTV Silicone, part number 1
… read more
Motorcraft IPR Valve for 7.3 Power Stroke (1996–2003): Symptoms, Fixes, and Install Tips
Mar 25th 2026
The 7.3L Power Stroke’s HEUI system runs on high-pressure oil, and the Injection Pressure Regulator (IPR) controlls how much oil the HPOP actually sends to the injectors. When the IPR is happy,
… read more






