Piston rings Johnson TN 28

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  • June 17, 2019 at 8:53 am #177367
    tinkerman
    Participant

      US Member

      Does anyone know if you can buy rings from hasting for a TN 28? I don’t see this model on their website. I know the bore is 1-15/16 but I can’t find anything on the ring thickness. I see a couple other models with a 1-15/16 bore and they have a 3/32 thick ring, and this seems to be a popular thickness but I don’t want to guess. Could I take the piston to a machine shop and see if they can match it up? Just looking for options and wondering what others do when needing rings that are NLA

      It's a jungle out there.

      June 17, 2019 at 9:19 am #177368
      frankr
      Participant

        US Member

        Takes OMC/BRP part number 378432. Same # fits 5.5 hp CD-xx models.

        June 17, 2019 at 10:19 pm #177430
        tinkerman
        Participant

          US Member

          Thanks frank

          It's a jungle out there.

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