1957 Johnson QD-18H

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  • June 9, 2017 at 12:26 am #7281
    arb1
    Participant

      I have a 1957 Johnson 10 HP with a model number QD-18H. Does anyone know what the H stands for?

      June 9, 2017 at 12:28 am #59304
      frankr
      Participant

        It identifies any mid-year changes IF there were any changes. Otherwise, it means nothing.

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