If the non-serviceable plug at the bottom of your HPOP is leaking, the factory short-thread plug has likely stripped the threads in the aluminum housing. This long-thread replacement plug is made from … read more

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&rsquo … read more

Fuel leaks on the 7.3 Powerstroke are one of those problems almost every owner will deal with sooner or later. While these trucks can seep fuel from a few different places, the fuel filter housing (fu … read more

If you’re installing an EGT (pyrometer) probe, the hardest part usually isn’t wiring—it’s getting clean threads into a cast manifold/up-pipe without gumming everything up. That … read more

Recommended Parts: Injector O-ring Kit: Part# AP000: https://www.riffraffdiesel.com/alliant-injector-o-rings/ CCV O-ring Kit: Part# GZ-8-004: https://www.riffraffdiesel.com/ccv-vent-cover-orings/ &nbs … read more