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Teraflex Brake Master Cylinder w/oversized Bore (07-18 Jeep Wrangler JK)

Item J101632
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Market Price $279.99 You Save 11% ($30.00)
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$249.99 (each)

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    Features, Video & Details

    • Improve Braking Performance – Ideal for Big Brake Kits
    • Cast Aluminum Construction
    • 100% New! - Not Re-Manufactured
    • Reservoir and Cap Included
    • Oversized Bore Provides 14% More Flow
    • Improves Pedal Feel
    • Direct Bolt-on Installation
    • Fits 2007-2018 Jeep Wrangler JK Models

    Review & Installation Video

    Review & Install Video

    Increase Stopping Power. When upgrading to larger piston brake calipers your Jeep's factory master brake cylinder can leave you with a soft feeling brake pedal. A Teraflex Brake Master Cylinder with an oversized bore provides 14% greater fluid volume than stock to greatly improve pedal feel and braking performance. This oversized bore Teraflex Brake Master Cylinder is ideal for use with Teraflex's Big Brake Kit (part# TER4303400) or other aftermarket big brake kits.

    Premium Quality Construction. Cast from premium quality aluminum for strength, this Teraflex Master Brake Cylinder features factory style connections with high-quality EPDM rubber compound seals. Manufactured to strict engineering quality standards, Teraflex Brake Master Cylinders meet or exceed S.A.E. specifications for years of reliable leak free operation.

    Straight Forward Installation. This Teraflex Master Brake Cylinder is a direct fit upgrade for your Wrangler’s original stock master cylinder, so it simply bolts into place. Seeing that installation requires bleeding the brake system professional installation is highly recommended.

    Limited Lifetime Warranty. TeraFlex Inc. warrants its products to the original retail purchaser to be free of defects in material and workmanship for as long as the original purchaser owns the vehicle on which products were originally installed unless otherwise specified. Some exclusions may apply, please see manufacturer's warranty for complete details.

    Application. This oversized bore Teraflex Master Brake Cylinder is designed for use on 2007-2018 Jeep Wrangler JK models with a Big Brake Kit installed.

    Fitment: 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 Details

    MPN# 4303450

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Brake master cylinder
    Installation Info
    Will it fit my Wrangler?
    • JK Rubicon 2 Door - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18
    • JK Rubicon 4 Door - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18
    • JK Wrangler 2 Door - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18
    • JK Wrangler 4 Door - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18

      Customer Photos (2) Submit Your Photo

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        Questions & Answers (3)

        3 Top Rated Questions

        Is anything else needed to run this master cylinder with a standard transmission?

        • The Teraflex Brake Master Cylinder with oversized Bore will not require other components for proper installation.

        Helpful (0)

        Does this work with a standard trans?

        • This will work with both manual and automatic transmissions.

        Helpful (0)

        can i install this as a precursor to a big brake install.

        • We do not recommend this for OEM brakes.

        Helpful (0)
        Post Your Question

          Customer Reviews (8) Write a Review

          Overall Rating 4.8

          out of 5 stars

          • Fit 5 5
          • Bang For Your Buck 4.25 4.3

          • 5/5

            May 15, 2019

            Great product

            I installed this with the teraflex big brake kit for front and real. Along with new brake lines. The difference is huge! Love it!


            Year: 2011Submodel: Rubicon

            Helpful (0)

          • 4/5

            May 15, 2019

            Increases braking

            Works great and coupled with the big bore break kit it gives a noticeable increase in braking performance.


            Year: 2010Submodel: Wrangler

            Helpful (0)

          • 5/5

            November 27, 2018

            Big brake, mannual hub and 8 lug conversation kit.

            It has been the best office ornament and one of the most expensive ones I have purchased. For some reason I cannot get any form of an answer from anyone not even Teraflex about the full floating rear axle 8 lug conversion kit that I also need and axle shafts which go into a 35-spline carrier for my JKU. This is disappointing. The parts are good looking parts but cannot be installed because they do not appear to carry axles for a 35 spline Dana 44 carrier in a JKU


            Year: 2010Submodel: Wrangler

            Helpful (5)

          • 5/5

            July 31, 2018

            Teraflex Brake Master Cylinder w/oversized Bore

            If your going to put a big brake kit on your Jeep, you will most definitely want to get this master cylinder. Especially if you do any wheeling out west like Moab or a few other places with steep inclines where you think to your self brakes don't fail me now! Just get this master cylinder you can't go wrong in doing so..


            Year: 2013Submodel: Wrangler

            Helpful (4)

          • 5/5

            May 08, 2018

            Big brake upgrade

            A must to add to your list if your are planning to do the Teraflex or any other big brake kit upgrade to you JK


            Year: 2016Submodel: Wrangler

            Helpful (6)

          • 4/5

            March 17, 2018

            Big brake JK

            Delivered on time. Exactly what was advertised. Bolt right in no issues. Excellent addition to the Big Brake system much better stopping power with 37" tires.


            Year: 2013Submodel: Rubicon

            Helpful (6)

          • 5/5

            November 02, 2017

            Highly recommended

            Bought this with the entire teraflex big break kit with rear rotors and it all works great! No complaints


            Year: 2013Submodel: Wrangler

            Helpful (8)

          • 5/5

            October 19, 2016

            Great product

            Super simple to install. Coupled with my Teraflex Big Brake Kit for the front and back, my Jeep stops better then stock.


            Year: 2016Submodel: Rubicon

            Helpful (8)