I am running the Donaldson P550437, it is 5 microns at a beta value of 20 (95% efficient)... don't know what it is absolute (98.7% efficient or a beta value of 75) but I venture to guess in the 7-10 micron range. OEM spec is 10 microns absolute (ish)...

Power Stroke Diesel - Power and Pride

Some filters are slightly better, the aforementioned Donaldson, Baldwin (9 microns absolute) and some aren't as good, purolater is in the 20-25 micron range. 7.3s aren't as sensitive as the higher pressure common rail engines since it is the oil side of these injectors that usually lets go, not the fuel side. However I don't think better fuel filtration is a bad thing so long as it doesn't restrict flow.

 

I run a Wix filter in mine - Have for a while now - works fine.

There is:
WIX 33518 - Look like stock, used the factory fuel bowl lid.
WIX 33818 - The filter has an integrated lid.

 

33818 is what i run.....dont ever think i had one with the factory lid in the last 72k miles....

and i have ran b20 atleast twice in those 72k miles without it clogging/getting dirty(have a tank of b20 in now from oregon)

 

I use the Racor PFF 4616 from Dieselfiltersonline.
Primary filters 10 microns, secondary 2 microns
kit for both with O-rings is $34.95.

I usually order 4 oil filters and 2 fuel kits at a time because shipping is the same, something like $6.

 

Isn't that the filter kit for 6.0s?

 

x2 on the WIX 33818 buy a couple at a time...Easy off easy on with the gaskets etc..Good seal

 

sorry my bad. Wasn't paying attention!
:doh:

 

No worries, I was thinking "Hot damn someone finally made a 2 micron filter for the 7.3s!"

 

wishful thinking eh!?

:haha: :hehe: :nana:

 

I use the motorcraft filters. The fuel and oil are cheap enough at the local dealer. Plus this is my first 7.3 and it's gone this far with motorcraft so I kept it simple.

 

i use thier oil filter.... FL1995 is so easy to remember when i am looking at them on the shelf.. its also cheaper than the wix in most stores.

 

Lately I've noticed filters from the dealers have been cheaper than Autozone, o riley, Napa etc. I got an 84 Toyota I haul to trails and te yota filters are like $3 less then gram, wix, micro guard etc...