Correct Master cylinder

Discussion in 'The Bench' started by 72STAGE1, May 25, 2022.

  1. 72STAGE1

    72STAGE1 STAGE 1 & 2

    I am going to replace the master cylinder on my 72 Stage 1, can anyone give me the correct part number and where to get it?

    Thanks in advance.
     
  2. Redmanf1

    Redmanf1 Gold Level Contributor

    I have a rebuilt one but will not be home for several weeks.
    Nelson
     
  3. 72STAGE1

    72STAGE1 STAGE 1 & 2

    Appreciate the offer, but I can’t wait. Im hoping someone can chime in so I order/ or get the right one from a parts store.
     
  4. john.schaefer77

    john.schaefer77 Well-Known Member

  5. Redmanf1

    Redmanf1 Gold Level Contributor

    Last edited: May 29, 2022
  6. 72STAGE1

    72STAGE1 STAGE 1 & 2

    Thanks very much, that helps. Local parts had this one, it’s close but not, It’ll get me on the road until I can get the one you pictured.

    D657DCCD-0FD3-467C-8AB2-F213DFCAB448.jpeg
     
  7. Brett Slater

    Brett Slater Super Moderator Staff Member

    Did you ever find the OEM part number for this?

    I see them on eBay all the time and also learned that GM used the same pieces brand wide. You never know....
     
  8. 72STAGE1

    72STAGE1 STAGE 1 & 2

    No number yet, but there are subtle differences between about 8 of them used during the time period I have found.
     
  9. 446379H

    446379H Well-Known Member

    71 disc was “ WK “ might be a starting place ..
     
    tdacton and Dano like this.
  10. Dano

    Dano Platinum Level Contributor

    Thx. I'll have to check ehat I'm assuming was the original off my '71 GS.
     
  11. Brett Slater

    Brett Slater Super Moderator Staff Member

    An assembly or chassis manual would have the numbers/codes.

    I don't have either for a '72, though. I sold mine a couple years ago.
     
  12. BQUICK

    BQUICK Gold Level Contributor

    Did he say he had MANUAL disc?? The Inline Tube EBAY thing says manual....
     
  13. Redmanf1

    Redmanf1 Gold Level Contributor

    Ok, I fixed it... :)

     
  14. Redmanf1

    Redmanf1 Gold Level Contributor

    It is a 409 with a BE code stamped. .5470409 .Make sure it has the bleeders.......
     
    Brett Slater likes this.
  15. Smartin

    Smartin antiqueautomotiveservice.com Staff Member

    I just ordered this from inline tube’s eBay page. Showed up a week later.
     

    Attached Files:

  16. Brett Slater

    Brett Slater Super Moderator Staff Member

    BE or EB?
     
  17. Brett Slater

    Brett Slater Super Moderator Staff Member

  18. Redmanf1

    Redmanf1 Gold Level Contributor

    BE
     
    Brett Slater likes this.

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