Contact Us / Visit Us (click here)
Our warehouse is closed for New Years Jan 1-4th.
Orders placed after 12PM PST on Tuesday 12/30/2025 may not ship until Monday (1/5/2026).
International Customers Click Here [Updated 6/2025]
 
'https://cdn.cougparts.com/dc/27603/1424730252_t.jpg','https://cdn.cougparts.com/dc/27603/1424730227_u.jpg','https://cdn.cougparts.com/dc/27603/1424730228_q.jpg'
  • Seal - Rebuild Kit - Distribution Block - Disc Brake - New ~ 1970 - 1973 Mecury Cougar / 1970 - 1973 Ford Mustang - 27603
  • Seal - Rebuild Kit - Distribution Block - Disc Brake - New ~ 1970 - 1973 Mecury Cougar / 1970 - 1973 Ford Mustang - 27603
  • Seal - Rebuild Kit - Distribution Block - Disc Brake - New ~ 1970 - 1973 Mecury Cougar / 1970 - 1973 Ford Mustang - 27603

Item #: 27603

Login to add this item
to a saved wishlist
Price: $50.00
    Cost: 4000
    Earns: 100
    Bonus: 0

    Availability

    In-Stock Item - Ships: Next Business Day

    Applications

    Description

    Quality kit for rebuilding your disc brake distribution block combination proportioning valve on 1970-73 Mercury Cougar and Ford Mustangs. Special molded and round O-rings are made from EPDM (Ethylene Propylene 70 Durometer) which is designed SPECIFICALLY to withstand chemical degradation caused by prolonged exposure to brake fluid. We custom made the spring from the exotic alloy INCONEL, which will never rust and will retain its factory specification compression strength many times longer than the originals.

    Check out this video

    Specifications:
    Shipping Weight: 0.10 LBS
    (weight shown may be the dimensional weight)

    This item must ship via

    review-star review-star review-star review-star review-star

    5.00 out of 5 stars
    Based upon 5 Review(s).
    5 Stars
    100%
    4 Stars
    0%
    3 Stars
    0%
    2 Stars
    0%
    1 Stars
    0%
    Idaho
    2017

    Distribution block rebuild kit

    5.00 out of 5
    Material:
    review-star review-star review-star review-star review-star
    Fit:
    review-star review-star review-star review-star review-star
    Craftsmanship:
    review-star review-star review-star review-star review-star
    Correctness:
    review-star review-star review-star review-star review-star
    Pros:
    Cons:
    Correct kit for 1970 distribution block rebuilds. Fitment of all components were good and so far, seems to be working correctly after rebuilding.

    Idaho
    2017

    Distribution block rebuild kit

    5.00 out of 5
    Material:
    review-star review-star review-star review-star review-star
    Fit:
    review-star review-star review-star review-star review-star
    Craftsmanship:
    review-star review-star review-star review-star review-star
    Correctness:
    review-star review-star review-star review-star review-star
    Pros:
    Cons:
    Correct kit for 1970 distribution block rebuilds. Fitment of all components were good and so far, seems to be working correctly after rebuilding.

    1970 Ford Torino

    5.00 out of 5
    Material:
    review-star review-star review-star review-star review-star
    Fit:
    review-star review-star review-star review-star review-star
    Craftsmanship:
    review-star review-star review-star review-star review-star
    Correctness:
    review-star review-star review-star review-star review-star
    Pros:
    • Quality
    Cons:
    Bought this kit to rebuild my Distribution Block since it was leaking and this worked like a charm.

    1970 Ford Torino Power Front Disc Brakes.

    Brighton, Michigan
    2025

    1968 / Mercury Cougar Decor Trim Level

    5.00 out of 5
    Material:
    review-star review-star review-star review-star review-star
    Fit:
    review-star review-star review-star review-star review-star
    Craftsmanship:
    review-star review-star review-star review-star review-star
    Correctness:
    review-star review-star review-star review-star review-star
    Pros:
    Cons:
    Distribution Block w/ built in proportioning valve- Power Disc Brake Kit, per other Cougar Owners, I opted to go to a 1970 Distribution Block w/ built in proportioning valve due to the fact that my oem rear brake proportioning valve was leaking. this is not an easy to get to item in the vehicle, and i only want to do this 1 time if at all possible. Per the WestCoast Classic Cougars YouTube Video, I purchased the OEM rebuild kit to install the correct size seals in this valve (There were (2) umbrella seals in the kit, have to call them to find out which one i should se though). You want the right part the first time? Then buy from WestCoast Classic Cougars!!!

    Minnesota
    2013

    5.00 out of 5
    Material:
    review-star review-star review-star review-star review-star
    Fit:
    review-star review-star review-star review-star review-star
    Craftsmanship:
    review-star review-star review-star review-star review-star
    Correctness:
    review-star review-star review-star review-star review-star
    Pros:
    • Parts%20fit%20great.
    Cons:
    I've got a '67 that has '70 disc brakes. Watching the video helped me realize this, and made the rebuild easy to do. Glad I did this, there was quite a lot of dirt in the block.

    Number of questions: 1
    Please login to ask a question.
    Question
    Hi, how are you? I bought your Seal Kit for my 1970 Disc Brake Distribution Block. I followed your video, and for the most part I am 100% satisfied with the hardware. The only question I have for Don, is the piston on the 1970 that was on the front brake end has the 2 o-rings on the piston, but the the third o-ring was on top of a brass collar that slid on the top of the piston. I am trying to have you confirm that this is correct. Additionally, I updated the rear brake end with the new spring, the o-ring on the bolt and the small grommet inside the bolt plus the grommet that went inside the valve body. I was able to get the piston in with the spring, washer on top, and then I had to muscle the bolt on in order for it to seat. Please confirm if I took the correct direction. Unfortunately the procedure on this particular part isn't detailed. Thanks. Chuck Jacobs
    February 6, 2022 5:49 PM

    Why am I being warned about potential exposure to chemicals in motor vehicle parts?


    • Some chemicals in motor vehicle parts are on the Proposition 65 list because they can cause cancer and/or birth defects or other reproductive harm.
    • When purchasing USED or NOS items, we do not know if listed chemicals are present in these products.
    • This product is known to contain the following listed chemicals:
    WCCC is by far the most helpful and knowledgeable business I've worked with regarding the restoration of my 68 Mustang. The instructions and parts list for retrofitting the ideal power steering hose routing to avoid leaks from contact with the...
    - Christian Cary
    WCCC staff is very knowledgeable. They are quick to advise me on getting the right part. Shipping is fast and reasonably priced. Great group to work with. ...
    - 39tb
    For many years I have ordered parts to my 1970 Cougar xr7 from West Coast Classic Cougar. I have never had any issue with the purchased item. The last purchased issue was the round rubber claxon switch for the steering wheel. The unit was easily...
    - Rafael
    Thank you West Coast cougar for helping me rebuild my 1969 cougar XR7 and now my 1970 cougar eliminator thank you for answering my phone calls and having the parts I need. Thanks to Don Daryl and the rest of the crew for all that you do.   ...
    - Dick
    A serious effort has been made to for the WCCC website answer any questions that I had. Thank You ...
    - Spannerhanz
    Huge thanks to WCC Support — they were fast, helpful, and got the issue resolved right away. ...
    - great support staff
    <p>I've ordered from WCCC for parts for my 67 Shelby. Cougar headlight switch, rear tail light sockets, friction tape for wiring, bulbs, fuses, etc... Great resource and videos are great! Thanks</p>   ...
    - sanpablo
    I have been ordering parts from this business for many years. Even though my car is not actually a cougar. They often are the only ones who have the right product for my car. I got the best information from the guy who actually is on the videos....
    - The Reverend
    I have been buying from WCCC sometime in the late 1990's as always great to work with I use the online now but still good ...
    - Mike
    Best place ever ...
    - James
    F2C20