6637 question
#16
They are the same, there are several different "brands" of filter that are the same 6637, some claim to be better, but when it comes down to it they are all made at the same place... just different stickers. lol
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TheBludgeon
1999 - 2003 7.3L Power Stroke Diesel
5
10-15-2011 01:01 PM
smash fascism
1994.5 - 1997 7.3L Power Stroke Diesel
3
04-18-2011 12:32 PM