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      Why buy from Lowbrow?

      • Free Shipping On US Orders $99 & up*

      • Everything In Stock & Ships Fast!

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      • 90 Day Money Back Guarantee

      • No Restock Fees, Ever!

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      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
      5.0 Based on 15 Reviews
      5 ★
      100% 
      15
      4 ★
      0% 
      0
      3 ★
      0% 
      0
      2 ★
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      Filter Reviews:
      • lot cleaner
      • brake master cylinder
      • compression
      • Fatboy
      • manner
      • detail
      • master cylinder cover
      • everything
      EF
      01/25/2022
      Eddie F.
      United States
      I recommend this product

      Finned master cylinder cover

      Excellent product with great fit and finish

      EM
      02/02/2021
      evelio m.
      United States United States
      I recommend this product

      Clean look

      Small detail. But it’s totally worth it used it on my rear brake master cylinder made it look a lot cleaner

      CW
      09/12/2020
      Clyde W.
      United States United States
      I recommend this product

      Nice

      Fit great, looks great.... if you have a high compression, stroked evo... loktite everything!!!

      KA
      05/14/2020
      Keith A.
      United States United States
      I recommend this product

      nice piece

      Purchased the finned rear master cylinder cover for my old Fatboy. Looks just great and came in a timely manner.

      Lowbrow Customs Finned Master Cylinder Cover - 1982 - 2005 Harley-Davidson #45004-85 ReviewLowbrow Customs Finned Master Cylinder Cover - 1982 - 2005 Harley-Davidson #45004-85 Review
      JP
      07/30/2019
      Jeff P.
      US

      Great quality products like always

      Great quality products like always at a damn good price

      EK
      06/15/2019
      erika k.
      US

      Good stuff

      Another great product really gives the stock mater cylinder a clean and uniform look

      ES
      04/05/2019
      Ester S.
      US

      Just what I needed

      Great service

      RC
      03/07/2019
      Rod C.
      US

      Awesome covers

      I replaced both front and rear master cylinder covers with these polished finned covers. They look so much better than the factory warning label covers. Great quality and sleek looking. Thank you !!

      RM
      02/03/2019
      Ricky M.
      US

      Rear Master res cover

      Awesome part . Great quality and price , shipped super fast also . Can't go wrong dealing with low brow!

      CA
      12/28/2018
      Carlos A.
      US

      Finned master cylinder cover

      This is a cool detail piece that matches the master cylinder and looks way better than the factory cover !

      Lowbrow Customs Finned Master Cylinder Cover - 1982 - 2005 Harley-Davidson #45004-85 ReviewLowbrow Customs Finned Master Cylinder Cover - 1982 - 2005 Harley-Davidson #45004-85 Review
      DL
      09/10/2018
      Dan L.
      US

      Good part

      Looks way better than the OEM cover, duh. Good quality part..solid.

      Lowbrow Customs Finned Master Cylinder Cover - 1982 - 2005 Harley-Davidson #45004-85 Review
      DP
      07/09/2018
      Doug P.
      US

      Part is perfect !

      Part is perfect !

      RL
      09/01/2017
      Robert L.
      US

      Great quality product.

      Heavy gauge material and quality lines. Looks super tight and just vintage enough to tighten up a rather bland looking part on my new bobber build.

      K
      04/24/2016
      Killer

      Kool man

      Added this cover to my Chopped 87 FLT dresser " yea, I know ", goes well with the Moon stuff. Ride on man.

      A
      11/17/2015
      Artie

      Quality stuff

      Amazing what a difference something so seemingly simple can make. This is the kind of neat detail that shows you've put some thought in your bike. This was the easiest thing I've ever installed on a bike, and looks way better than the stock cover, in fact it looks like the stock part should have looked in the first place!