Does anyone have the part number for the 727 speedometer o-ring?

Engine, Trans & Driveline

  1. Triple Black 73

    Triple Black 73 Well-Known Member

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    My o-ring is fubar and I needed one yesterday. They are all over online, I know, but I need one quick.

    Does anyone have a part number for the orange/red speedometer o-ring shown below?

    Thank you in advance!

    s-l1600.jpg
     
  2. 493 Mike

    493 Mike FBBO Gold Member FBBO Gold Member

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    Check your local transmission shop.
    Mike
     
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    • oldbee

      oldbee FBBO Gold Member FBBO Gold Member

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      Mike is right, 2summers ago a shop close to me gave me both seals from a “broke-open” GM kit they had. Worked great.
       
    • Triple Black 73

      Triple Black 73 Well-Known Member

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      Asking people at the part counter? Umm, I don't know what it is, but I have zero luck asking those fine folks to look up parts. The worst example was lug nuts for my '03 Dakota. Those lugs never went on my Dakota nad ended up my Charger.

      I was hoping someone had the part number handy, because I really didn't want to spend hours looking up part numbers. Anyways I found it:

      OEM Part number: 6025752, 6031370

      http://atpautomotive.com/auto-transmission/seal-to-34
       
    • steve340

      steve340 Well-Known Member

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      That o ring would be very easy to get from any o ring supplier.
       
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      • Dipstick

        Dipstick Well-Known Member

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        The O ring is 1.75" OD X .100" thick.
         
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        • Triple Black 73

          Triple Black 73 Well-Known Member

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        • Triple Black 73

          Triple Black 73 Well-Known Member

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          I wasn't sure about the thickness, thanks. The one I had was 1.75 OD but thicker, so I chopped it down to fit. Well, that only lasted for so long before it started leaking all over my garage.
           
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