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  1. #1

    Default what year is my 25hp mercury outboard SN 5810948

    any help, thank you

  2. #2
    Join Date
    Sep 2010
    Posts
    19,842

    Default Re: what year is my 25hp mercury outboard SN 5810948

    My best guess is a 1980 model.----Post a picture of it.

  3. #3

    Default Re: what year is my 25hp mercury outboard SN 5810948

    Click image for larger version. 

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  4. #4

    Default Re: what year is my 25hp mercury outboard SN 5810948

    Early 80's?

  5. #5
    Join Date
    Sep 2010
    Posts
    19,842

    Default Re: what year is my 25hp mercury outboard SN 5810948

    Those decals were used in 81 / 82 / 83 model years.

  6. #6

    Default Re: what year is my 25hp mercury outboard SN 5810948

    Thank you

  7. #7
    Join Date
    Sep 2010
    Posts
    19,842

    Default Re: what year is my 25hp mercury outboard SN 5810948

    They used the same serial numbers in 80 and 81.----So I say yours is an 81 based on those decals.

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