If you own a 1994–2000 7.3L Powerstroke, you’re likely missing the benefit of the low-pressure oil mesh screen found on later 2001–2003 models. Most don't understand that the HPOP t ...

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—especi ...

The stock 7.3 fuel bowl FPR housing works… until it doesn’t. The cast threads can bind, strip, or flat-out snap if there’s contamination in the threads or the compression fitting g ...

Parts Required: Riffraff Diesel Billet Manifold Plenums 1994-2003, including: (2) Billet plenums (2) Viton o-rings (1) Installation hardware packet   Recommended Parts: Turbo/pedestal o-ring ...

Arguably one of the most complex parts on a 7.3. Just about everything runs through the front timing cover or heavily relies on it doing its job correctly. The OE front cover has done its job amazing ...

Full PDF Instructions can be downloaded here: https://www.riffraffdiesel.com/content/RESOURCES/Riffraff_Diesel_Billet_Plenum_Instructions.pdf Product Link: https://www.riffraffdiesel.com/riffraff-die ...

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 som ...

The factory-installed intake plenums on the 7.3L Powerstroke, quite literally, fail under pressure. Whether you've got a stock truck or one that's been hopped up, the thin stamped steel factory-insta ...

The Problem: The factory-installed thermostat housings on the 7.3 and 6.0 Powerstrokes are very prone to corrosion. Corrosion that eventually leads to coolant leaks. Leaks for either engine generally ...

Good clean oil is extremely important to a 7.3L. Moreso than for most other engines. That's because the oil is used differently than with most other engines. The 7.3L injection system is more like a ...

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 Thermo ...

If your 7.3 Powerstroke has ever done the turkey gobble / flutter thing under load, you’ve met compressor surge. In laymans terms, surge is teh turbo becoming innefficient/pushed too far for it ...

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, ...

A 7.3 Powerstroke thermostat housing leak often starts small—coolant smell, dried residue near the upper hose, or a slow drip that usually only shows up after a heat cycle. On 1999–2003 7 ...

The factory 6.0L / 6.4L oil filter housing cap gets removed constantly, heat-cycled constantly, and (let’s be honest) occasionally over-tightened. It lives a rough life, especially for plastic.

On a 7.3 Powerstroke, the oil cooler “assemblies” (aka headers or mounts) aren't just end caps—they're the oil filter base, and the in/out for oil and coolant into the cooler. It&rs ...

Upgrade your 7.3L truck’s crankcase ventilation system with the Riffraff Diesel Billet Doghouse CCV Cover (94–03). Machined from 6061-T6 billet aluminum and anodized for durability, this ...

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 exactl ...

Injector cups (aka injector sleeves) are the thin barrier that keeps high-pressure fuel and engine coolant from turning into one nasty mix. When that barrier fails, the usual concernt is fuel in the ...

If you’ve owned a 1999–2003 7.3 Powerstroke long enough to do a few fuel filters, you’ve probably met the factory fuel bowl cap in its natural habitat: tired, stripped out, and one ...