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Master Cylinder

Discussion in 'Early CJ5 and CJ6 Tech' started by justnty, Feb 6, 2011.

  1. Feb 6, 2011
    justnty

    justnty Member

    Boise, ID
    Joined:
    Dec 9, 2009
    Messages:
    136
    Needing to remove and replace my brake master cylinder on my 1970 CJ5 V6 dual resevoir. I walked into NAPA and bought a remanufactured M/C part# P1842 http://www.napaonline.com/Search/Detail.aspx?A=NMBP1843_0311456861&An=599001+101970+50045+2045003 but it just doesn't feel like it's the right one. I'm worried I am going to tear it off it's going to make a mess for as long as it takes to find the correct one. Mine mounts under my feet on the frame this one does not look like it does mine also is a bolt on cover though I doubt that detail matters.
     
    justnty, Feb 6, 2011
    #1
  2. Feb 7, 2011
    Walt Couch

    Walt Couch sidehill Cordele, Ga. 2024 Sponsor 2023 Sponsor 2022 Sponsor

    cordele, Ga.
    Joined:
    Mar 29, 2007
    Messages:
    5,925
    Your link leads to P1843 which is a fire-wall mount MC. The nr you say, P1842 does not appear in the catalog?
     
    Walt Couch, Feb 7, 2011
    #2
  3. Feb 7, 2011
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
    Joined:
    Nov 6, 2002
    Messages:
    4,275
    Try these part numbers:

    Wagner MC56193
    Cardone 101292
    Dorman M56193
    Bendix R11373

    All of these are dual-chamber, and have the threaded port in the bottom for the brake light switch.
     
    w3srl, Feb 7, 2011
    #3
  4. Feb 7, 2011
    jglad

    jglad Village Idiot

    Glenville, WV
    Joined:
    Oct 5, 2008
    Messages:
    123
    The Napa master cylinder is the same one that I am using. I didn't have any problems getting it to fit.
     
    jglad, Feb 7, 2011
    #4
  5. Feb 7, 2011
    Smokeater

    Smokeater Sponsor

    Browns Summit, NC
    Joined:
    Jun 1, 2009
    Messages:
    125
    I'm using the same one also. I did have to modify how the rod is held in. I hope you kept the original clip that held the rod in the master cyl.. I reused it, but I had to grind alittle of the backside to get the snapring in. Also you won't get a bolt on cover unless you find an original master cyl..
     
    Smokeater, Feb 7, 2011
    #5
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