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- Ford > 94-97 'OBS' 7.3L > Powertrain > Ford Engine Overhaul Kit
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- Ford > 94-97 'OBS' 7.3L > Gauges & Electrical > Gauges > Autometer > Ford Racing
- Ford > 99-03 Super Duty 7.3L > Gauges, Electrical & Lighting > Gauges > Autometer > Ford Racing
- Ford > 00-03 Excursion 7.3L > Intakes, Intercoolers & Related > Intake Systems & Replacement Filters > Ford AIS Intake
- Ford > 99-03 Super Duty 7.3L > Intakes, Intercoolers & Related > Intake Systems & Replacement Filters > Ford AIS Intake
- Ford > 99-03 Super Duty 7.3L > Gauges, Electrical & Lighting > Gauges > Autometer > Ford Factory Match
- Ford > 94-97 'OBS' 7.3L > Gauges & Electrical > Gauges > Autometer > Ford Factory Match
- Ford > 94-97 'OBS' 7.3L > Turbo & Related > Turbo Rebuild Kits
- Ford > 99-03 Super Duty 7.3L > OEM / Factory > High Pressure Oil System
- Ford > 94-97 'OBS' 7.3L > O-Rings > High Pressure Oil Pump
- Ford > 99-03 Super Duty 7.3L > O-rings > High Pressure Oil Pump
- Ford > 00-03 Excursion 7.3L > OEM / Factory > High Pressure Oil System
- Ford > 03-07 Super Duty 6.0L > OEM / Factory > High Pressure Oil System
- Ford > 03-05 Excursion 6.0L > OEM / Factory > High Pressure Oil System
- Ford > 94-97 'OBS' 7.3L > OEM / Factory > High Pressure Oil System
- Ford > 00-03 Excursion 7.3L > O-rings > High Pressure Oil Pump
- Ford > 94-97 'OBS' 7.3L > Powertrain > High Pressure Oil Crossover Lines
- Ford > 99-03 Super Duty 7.3L > O-rings > Combo Kit
- Ford > 00-03 Excursion 7.3L > O-rings > Combo Kit
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Product Application and InstallationRiffraff Diesel Inc® will not be held responsible for products that are ordered, installed, or received incorrectly. It is the end purchaser/users/installers...
Winter Preparation: Getting your Powerstroke ready for the cold(Post)Winter is right around the corner. For us 6.0 and 7.3 owners, cold weather affects our engines more than any other modern era light duty diesel engine. The 6.0 and 7.3 are both tough as nails, but col
OBS 7.3 to Super Duty UVCH Mod: Better connections, better operation(Post)If your OBS 7.3 (’94.5–’97) has random misses, contribution codes, rough cold starts, or the classic “it runs better when I wiggle the valve cover plug”… you’re not imagining it. The under-valve-cover
The Glow Plug System - Common issues, codes, on-times, and more(Post)Glow plugs. Things that are often forgotten until running or starting issues arise. Hard cold starts, cold no starts, smoky when cold, rough running when cold, all are common concerns that could be as
6.0L Powerstroke FICM Testing: Common symptoms and diagnostic procedures(Post)The 6.0L Powerstroke’s Fuel Injection Control Module (FICM) is the brain of the injection system. It receives signals from the PCM to control the injectors themselves. The FICM lives in a very harsh e
6.0L Powerstroke Billet Thermostat Housing FAQ(Post)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 Thermostat Housing.
Blown Boots And Collapsed Factory Stamped Steel Plenums - How And Why It Happens, And How To Prevent It. (Post)Blown boots are some of the most common concerns in all of diesel. Just about everyone has delt with one, and when it happens, it’s always during a high stress situation. You’re towing heavy up a grad
Why You Need It: Riffraff Diesel Billet Valve Cover Set for 2003–2007 6.0L Powerstroke (Post)If there’s one thing a 6.0L will do with consistency, it’s find weak sealing surfaces and turn them into an oil “misting” problem making the engine a mess. That’s exactly why we built the Riffraff Die
How to Test a 6.0L Powerstroke Electronic Fan Clutch(Post)A weak fan clutch can make a healthy 6.0L Powerstroke look like it has a major cooling-system problem. The truck may stay cool unloaded, then heat up while towing, climbing a grade, idling, or running
7.3L Powerstroke Glow Plugs: Full step-by-step how-to replacement(Post)Full PDF Instructions can be downloaded here: https://www.riffraffdiesel.com/content/RESOURCES/Riffraff%20Diesel%207.3L%20Glow%20Plug%20Replacement.pdf Product Link: Glow Plugs: https://www.riffraffdi
The 7.3 Cooling System: Differences between OEM and mass-produced aftermarket water pumps, hoses and fan clutches(Post)Summer and the towing season are in full swing. With the temps getting ready to go even higher across the nation, we figured it’s a perfect time to talk about some cooling system components: water pum
Go Billet and Delete the Check Valve: Fuel Bowl Billet Stand Pipe Assembly (1994–1997 OBS 7.3 Powerstroke)(Post)The OBS (1994–1997) 7.3 Powerstroke fuel bowl stand pipe is a known service headache because the factory piece is plastic, and it’s easy to crack or snap during removal; especially if someone forgets
OBS 7.3 Powerstroke EOT Sensor Swap: Updating the Obsolete 1994–1997 Oil Temp Sensor(Post)Some 1994.5–1997 OBS 7.3 Powerstroke trucks used an early-style EOT sensor that is now obsolete. If your truck still has that old Engine Oil Temperature sensor and it fails, the correct repair is to u
Riffraff Diesel Billet HPOP Reservoir Body for 1996–2003 7.3 Powerstroke(Post)The 7.3 Powerstroke HPOP reservoir feeds oil to the high-pressure oil system. When the factory cast reservoir cracks, leaks, or has damaged threads, it can create oil leaks in the valley and make diag
Riffraff Diesel Billet HPOP Reservoir Cover for 1999–2003 7.3 Powerstroke(Post)The 7.3 Powerstroke HPOP reservoir cover is one of those small parts that gets annoying fast when the fill plug is stripped, the cover is tired, or the reservoir needs to be topped off without making
High Flow Banjo Bolts for 6.0L / 6.4L Powerstroke (2003–2010)(Post)If you’ve ever looked at the factory fuel banjo bolts on a 6.0L and thought “I should just drill these out,” you’re not alone—and it’s also how people end up snapping pot-metal bolts off in the head
Top 10 4R100 Problems 7.3 Owners Should Fix Before Towing Season(Post)The 7.3L Powerstroke will usually drag the trailer wherever you point it. The 4R100 however, needs a little more respect. It is not a bad transmission by any means, but heat, old fluid, weak cooler ca
Fuel Pickups: Which one is right for you?(Post)Fuel pickup options are everywhere—sumps, draw straws, high-volume pickups, or simply modifying the factory setup. Each solves a specific problem and improves fuel delivery in its own way. But what ac
Cooler EGTs, More Power: A Guide to Intercooling the 1994-1997 Powerstroke(Post)In the early days of light-duty diesel pickups, intercooling wasn’t a thing yet. GM’s 6.5L, the 7.3L found in OBS trucks, and even early 5.9L Cummins were all turbocharged, but none came with an inter
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