1956 Johnson 30 HP upper crank bearing seal

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  • May 19, 2018 at 8:17 pm #9977
    olcah
    Participant

      US Member

      This question is really aimed at Chris_P. I understand the number for this seal is 321467 and have installed one of these in a 1956 Johnson 30 HP RD18. From his website I see another number for that seal – 303804. To muddy the waters further talking to a reputable dealer, they recommend a double lip seal 911019.
      Chris_P can you enlighten me any on these different seals/numbers?
      Thank you.

      May 20, 2018 at 1:01 am #76356
      chris-p
      Participant

        303804 supersedes to 321467. They are essentially the same seal.

        911019 is a new number to me. I cannot comment on it, perhaps someone else can? Is that the superseded number for 321467? I don’t have access to my manuals right now sorry. Ill look when I can unless someone else has the answer.

        If you need a seal, PM me with your shipping address and Ill send one over.

        May 20, 2018 at 1:25 am #76361
        dan-in-tn
        Participant

          US Member

          Usually 900 series numbers of old were stern drive numbers? Some converted & were used for outboards. Lots of double lipped on stern drive applications. Sierra (18-2066) should have the sizes listed in their main catalog. Not all were ethanol resistant? Used in gearcase applications, etc.

          Dan in TN

          May 20, 2018 at 1:26 am #76362
          chris-p
          Participant

            Ok got interested in this so did some digging.

            The 303804/321467/18-2060 Oil Seal Measures 1.000 Shaft/1.375 OD/0.25 width

            The 911019/18-2066 Seal Measures 1.000 Shaft/1.375 OD/0.435 width

            So it has the same OD and ID, just a bit wider, which should not affect anything. I cannot see why that would not work as long as it is ethanol resistant. Good to know.

            May 20, 2018 at 1:36 am #76365
            frankr
            Participant

              US Member

              According to the chart, 321467 and 911019 are same ID and OD but the first is .250 thick and second is .435 thick. That’s all I know.

              EDIT: Too late, Chris beat me to it.

              May 20, 2018 at 12:58 pm #76398
              olcah
              Participant

                US Member

                Thank you everyone. Great info, Very much appreciated.

                May 21, 2018 at 12:09 pm #76470
                olcah
                Participant

                  US Member

                  Chris _P, please see PM.

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