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  1. 03-09-2013 11:48 AM #1
    Ed Tanzer
    Ed Tanzer is offline Senior Member
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    TYPE-A steering fluid

    Getting spare fluids...1975 Hatteras 53 steering pump calls for Type A transmission fluid...
    is this now the Dextron type?
    tnx et
    MV JJ Flygirl
    Lighthouse Point
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  2. 03-09-2013 12:07 PM #2
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    MikeP
    MikeP is offline Senior Member
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    Re: TYPE-A steering fluid

    Yes, Dexron.

    However, if the boat has the original Hynautic steering, the proper fill is hydraulic fluid 5606 OR "Hynautic" brand fluid. Hynautic is 4x the price of 5606 - Hynautic figured out they could make money by rebranding/selling hydraulic fluid. Though not available everywhere like ATF, 5606 can be purchased at any aircraft-type shop or on line. I bought a gallon when we bought the boat in 2004 , flushed/filled the system and still have the same (roughly) half gallon that was left from the flush/fill.

    By 1980, Hynautic was stating that ATF was suitable IF 5606 was not available. ATF will work but the steering is stiffer with ATF than with 5606.
    Mike P
    San Miguel de Allende, Mexico; Kent Island MD; San Antonio TX
    1980 53MY "Brigadoon"
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  3. 03-10-2013 09:20 AM #3
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    Robby
    Robby is offline Senior Member
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    Cool Re: TYPE-A steering fluid

    Google Aircraft Spruce and Specility.Check the cataloge they will ups it to your door.Mil-5606
    CRAZZZY NUFFF
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  4. 03-10-2013 11:49 AM #4
    Ed Tanzer
    Ed Tanzer is offline Senior Member
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    Re: TYPE-A steering fluid

    Quote Originally Posted by Robby View Post
    Google Aircraft Spruce and Specility.Check the cataloge they will ups it to your door.Mil-5606
    Thanks Robby, will do that....
    et
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