Fl 400s Vs. Fl 820s?
#1
#4
Here's a Ford list, at the bottom in the "note" section it tells about the use of a 400.http://www.ilma.org/resources/chart_...mendations.pdf
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#7
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#9
#10
Indeed, the 400 and FL-1A are the same seal diameter and same threads as each other. They (generally) fit all Ford V-8s and most of the V-6s prior to the modular motors back to the dawn of time. The 820 has been the filter for the 4.6 and its associated modular V-8 and V-10 cousins for a decade and a half.
Ever think to check the owner's manual while you were at the parts store? Just a novel idea, I know... Oh, and there's no motorcraft catalog that crosses an FL-820 to an FL-400.
-Joe
Ever think to check the owner's manual while you were at the parts store? Just a novel idea, I know... Oh, and there's no motorcraft catalog that crosses an FL-820 to an FL-400.
-Joe
#11
I I have a 5.4 F-150 that's supposed to run on the 820s and have ran a 400s on it. I was informed by Ford that there wasn't any problem with it because the seal and threads are the same size.
#12
Is the anti-drainback valve the same? Is the by-pass valve the same? Is the pressure that activates the by-pass valve the same? Is the media the same or does it allow for more flow? Is the filters capacity the same? Is the bursting rating the same? Guess what? They're different for a reason and while they might screw on the same, they are not the same internally.