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      Why buy from Lowbrow?

      • Free Shipping On US Orders $99 & up*

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      Customer Reviews
      4.7 Based on 25 Reviews
      5 ★
      76% 
      19
      4 ★
      20% 
      5
      3 ★
      0% 
      0
      2 ★
      4% 
      1
      1 ★
      0% 
      0
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      Filter Reviews:
      • upgrade
      • Onlu
      • o-ring
      • chance
      • delivery
      • speed rebuild
      • quality
      • issue
      • super nut
      • sealing lip
      M
      03/06/2025
      Mathew SVG verified by SHOP
      United States United States

      Well made, shipped fast

      A
      09/22/2024
      Anonymous
      United States United States
      I recommend this product

      Works Well - After Some Modification

      The Super Nut I received, which is hopefully an outlier and not a common issue, was cast poorly. It did not meeting specs to fit inside a socket. After filing down every side of the nut, filing down the shoulder of the nut around the gasket, and then correcting the excessive flare, it finally fit into a socket to be installed. Considering the price, I would NOT recommend this item, and would suggest anyone else start with a cheaper option.

      WR
      07/01/2023
      Walt R.
      United States United States
      I recommend this product

      Super nut

      Good one bye again

      HS
      01/13/2023
      Helmuth S.
      United States United States
      I recommend this product

      Supernut special

      Bought it to have a spare. Then ******* it on my joint for ****** adventures for me & the *****.

      JS
      07/29/2022
      jared s.
      United States United States
      I recommend this product

      Just what I needed

      Easy install. Fixed my issue. Thanks

      WP
      06/08/2022
      William P.
      United States United States
      I recommend this product

      77 shovelhead…

      Sweet… quality…

      GV
      05/06/2022
      Gilles V.
      Canada Canada
      I recommend this product

      super nut

      fit well ,I recommand

      OA
      05/27/2021
      Omi A.
      United States United States
      I recommend this product

      Low brow super nut

      Working great so far. Hasn't been on there long, but it's not leaking!

      EM
      05/05/2021
      Ezekiel m.
      United States United States
      I recommend this product

      Quality nut

      Overall quality is great! Love the double sealing lip. its a solid upgrade to my current super nut after my 4 speed rebuild. Onlu gripe is mine didnt come with the o-ring. easy enough fix

      DA
      04/28/2021
      david a.
      United Kingdom United Kingdom
      I recommend this product

      Great product

      Great product very well made

      AM
      03/21/2021
      Andrew M.
      United States United States
      I recommend this product

      Great product

      Seal fits nice and tight over the trans shaft. Good replacement part.

      JH
      12/03/2020
      Jim H.
      United States United States
      I recommend this product

      Supernut for shovel 4 spd

      Quick delivery and great to deal with

      HS
      11/21/2020
      Hank S.
      United States United States
      I recommend this product

      Haven't had the chance to use it yet, but it appears to be a solid product.

      G
      06/27/2018
      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
      06/14/2018
      Jerry A.
      US

      Supernut

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

      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.