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Thread: Goodyear Brake Master Cylinder parts

  1. #1

    Join Date
    Nov 2019
    Central New Jersey

    Goodyear Brake Master Cylinder parts

    Need 1" cup seals for Goodyear brake master cylinder #511738/218073-2. Original Goodyear part no. 217957-5. Automotive cannot be used as they are not compatible with aircraft H-5606 mineral based hydraulic fluid. I believe Nitrile compound is impervious to any type of fluid, but I cannot find such a cup seal made of Nitrile. Any ideas would be much appreciated.

    Thanks in advance, Bob

  2. #2

    Join Date
    Oct 2011
    New Hampshire
    What type airplane? The Swift I think has those types of brake master cylinders.

    Best of luck,


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