Re: 1957 Johnson 10hp and 18hp gears

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July 2, 2018 at 2:36 pm #78889
chris-p
Participant

    The 18hp has a higher pitched prop. 9.25"x11 Pitch
    The 10hp has the 9" x 8 Pitch

    Using the OMC Parts Reference Guide is the easiest way to navigate swapping questions like this, for me anyways.