Home Forum Ask A Member ’51 Big Twin

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  • #8581
    labrador-guy
    Participant

      US Member - 2 Years

      Guys, anybody have some part numbers for a 1951 big twin? Model #2001 I am looking for a power head gasket and impeller and maybe some crank seals.

      thanks in advance
      dale

      #66844
      outbdnut2
      Participant

        US Member

        The impeller is Sierra or NAPA #18-3006.
        Dave

        #66848
        Mumbles
        Participant

          Here’s a diagram with original P/N’s for a ’51 Johnson RD 25 horse but I’m not sure though if Johnson and Evinrude were sharing parts on these motors back then.


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          #66852
          dan-in-tn
          Participant

            US Member

            The base gasket is #302625 with an adaptor gasket under that of #302821. The impeller #778891 if you don’t want a Sierra. I believe the quad seals to replace the o-rings in the carbon holders is #305098? Someone correct me on that if I’m wrong, please. The quad seal is a better choice when replacing that o-ring. IMHO.

            Dan in TN

            #66853
            frankr
            Participant

              US Member

              305098 is correct. I have a bunch of them, anybody wants a couple can have them for postage. (M/E price is $16.00 ea.)

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