Riffraff Diesel Technical Knowledge Center
Top 10 Must-Have 7.3L Powerstroke Products (Proven Upgrades & Fixes)
Jan 30th 2026
The 7.3L Powerstroke (1994–2003) earned its reputation the old-school way: simple, durable, and willing to work for a living. But even the legendary 7.3 has predictable wear points—especia
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6.0L Powerstroke Billet Thermostat Housing FAQ
Jan 28th 2026
The stock 6.0L Powerstroke thermostat housing has one job: seal. And then, eventually, it… doesn’t. Corrosion + heat cycles = seepage. Riffraff Diesel has the fix: The 6.0L Billet Thermos
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7.3 Power Stroke 6637 Filter Mod (BHAF): More Airflow, More Filter Area, Simple Install
Jan 20th 2026
The 6637 filter modification (often called the BHAF – Big Honkin’ Air Filter) is the classic 7.3 Power Stroke intake upgrade: replace the restrictive stock airbox with a large, heavy-duty
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Step By Step How To - Billet Turbocharger Compressor Wheel Installation - 7.3 Powerstroke
Jan 15th 2026
Parts Required:
Riffraff Diesel Billet Compressor Wheel - Ported Housing: Part# RDP-703697-0001
Garrett Compressor Housing O-ring: Part# GZ-14-010
Turbo Pedestal O-ring Kit: Part# GZ-9-003
Rec
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Full Step By Step How To: Riffraff Diesel 7.3 Plenum Reinforcing Inserts
Jan 9th 2026
Parts Required
Riffraff Diesel Plenum Reinforcing Inserts:
1999.5-2003: https://www.riffraffdiesel.com/rdp-plenum-reinforcing-inserts-99-5-03/
1994-1999: https://www.riffraffdiesel.com/rdp-plenu
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