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Latest post Fri, Jul 13 2018 5:34 PM by desperad. 0 replies.
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  • Fri, Jul 13 2018 5:34 PM

    • desperad
    • Not Ranked
    • Joined on Thu, Mar 19 2009
    • mammoth lakes CA
    • Posts 1

    K & N 171b & c filters

    I was surprised to learn that K & N makes two different designs of the KN 171 filter that is supposed to fit Harley Davidson. 

    #1 has a slightly recessed thread and six feeder holes.  It only takes 1 turn before the gasket contacts the oil filter housing face and then K & N says to turn it another full turn making it only two turns on the housing nipple....I'm not comfortable with that....

    #2 has the same thread depth as the stock Harley premium 5 filter and 8 feeder holes.  It takes two full turns on the nipple for the gasket to contact the housing face.  Again they want another full turn after contact.   

    I called K & N and their people advised that #2 is a newer design.  Don't know how you can specify the newer KN 171 when ordering, there is no difference in the model # or packaging but there is DEFINITELY a difference between the two.....#1 was unacceptable on both my 2003 Deuce and 2017 Ultra.  

    Just so you know.......


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