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      Why buy from Lowbrow?

      • Free Shipping On US Orders $79.95 & up*

      • Everything In Stock & Ships Fast!

      • Fitment Guaranteed

      • 90 Day Money Back Guarantee

      • No Restock Fees, Ever!

      • Free Expert Motorcycle Technical Support

      LOWBROW CUSTOMS USA MANUFACTURING SCHOLARSHIPS

      Here at Lowbrow Customs we believe strongly in supporting US manufacturing. We have created multiple annual scholarships, one with the Lincoln Electric Welding School and another with Tri-C (Cuyahoga Community College) for students in financial need who are pursuing workforce training. From TIG welding to machining, this is the backbone of manufacturing in the United States. Want to learn more?

      Want to learn more? Click here.

      Customer Reviews
      4.6 Based on 12 Reviews
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      Filter Reviews:
      G
      06/28/2018
      Guest
      US
      Duo-seal super nut for H-D FX

      So far so good. Takes time to really evaluate wheather or not this will work over the long term. This should be sold with a stop leak spacer for the tranny that was a design flaw by HD . The combination of both products would be awesome!!

      JA
      06/15/2018
      Jerry A.
      US
      Supernut

      Only way to go, better than original H-D design

      G
      05/17/2018
      Guest
      US
      Big nut

      Great delivery time!

      AP
      11/21/2017
      Anirut P.
      US
      Duo-seal super nut for Harley 4 speed transmission-Stop leak

      It work very well and easy to install it..

      RC
      10/17/2017
      ronald c.
      US
      Trans SuperNut 4 Harleys

      The product is really nice. The packaging is not. The large o-ring is stretched ocer the nut in 1 side & vacuum sealed that way. That o-ring is useless & should not have happened. I thought about sendung it back but I found an o-ring NOT stretched out. So, we're good.