New air filter on my truck
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New air filter on my truck
I just installed a NAPA air filter part # 6637 on my '99 PSD. It required that I remove the stock filter housing to get it to fit. BIG filter. The rubber air boot that went to the stock filter housing fit right over the flange on the new air filter. It was a bit of a stretch getting it on, but in the end it was a perfect fit.
Last edited by Kwikkordead; 08-31-2006 at 07:45 AM.
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KOD may have done just that. Friend of mine with a '99 cummins saw my Tymar, took the filter off and slipped his intake hose over the filter flange and tried it out. Liked it so he bought one and is still running that way. I think the Tymar setup supplys an intake pipe to smooth out the airflow instead of using the factory connections.
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I did the same to my truck as kwik but I didn't like the fit so I went to the hardware store and bought a 3" (I think) abs coupler and a big hose clamp and slid it into both the filter and the intake it seemed to be a better fit and only takes up about an extra 1/4" of space. One other thing, don't just drop the filter in to the space where your old one sits make sure that you put it down on an angle like in kwikordeads picture if you don't your hood won't close right
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Mine is a 99.5 with the 4" rubber hose. I got it to fit with a bit of a stretch. And a bigger hose clamp, the factory clamp just wouldn't reach anymore. I had to get two hose clamps and open both of them up and join them end to end to make one very large clamp. And trim off the rubber guides that hold the factory clamp in place. I believe the earlier trucks have a smaller hose that must be adapted out to fit that very LARGE filter.
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