Mid-USA Rear Master Cylinder - 1987-2003 Harley-Davidson Sportster - Replaces OEM 42456-87C – Lowbrow Customs
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      Why buy from Lowbrow?

      • Free Shipping On US Orders $99 & up*

      • Everything In Stock & Ships Fast!

      • Fitment Guaranteed

      • 90 Day Money Back Guarantee

      • No Restock Fees, Ever!

      • Free Expert Motorcycle Technical Support


      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 5 Reviews
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      Filter Reviews:
      • dindt
      • caliper kit
      • Master cyclinder
      • product looks
      • everything gasket screws
      • functions
      • shipping service
      • fedex
      • Australia
      • distance
      john n.
      United States United States
      I recommend this product
      Parts order

      Master cyclinder fit great. Works good. Rear caliper kit got switched when placing order to front caliper kit and dindt notice it. So had to order a rear from somewhere else.

      Logan C.
      United States United States
      I recommend this product
      Rear master cylinder replacement

      Excellent product looks and functions as OEM. Very impressed

      DAVID N.
      United States United States
      I recommend this product
      Master cylinder

      Exact fit was surprised at how fast I got my parts

      TYson N.
      Australia Australia
      I recommend this product
      Rear master cyl for my 94' sporty

      Great product, Can't tell it's not stock! Pleased with the FedEx shipping service to Australia quite speedy considering the distance

      Mikael W.
      United States United States
      I recommend this product
      Awesomely priced

      Awesome comes with everything gasket screws ect