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? asked in Cars & TransportationBoats & Boating · 1 decade ago

can someone tell me the year of my mercury motor 9.9 hp?

serial number is 4091256. i tried to look it up, but can't find the year for it. thanks

3 Answers

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  • 1 decade ago
    Favorite Answer

    9.9 Mercs all have a letter designation at the beginning of the serial # ( 0Axxxxxx, 0Bxxxxxx, etc). 9.9s where first manufactured in 1986, ser.#s starting at 0A197xxx. 4091256 is the number for a 1975 9.8 hp Merc.

  • 1 decade ago

    The site I looked at said the serial number should be 8 to 12 characters. If that number is correct, you can probably call a Mercury dealer and ask them.

    Source(s): Just my opinion
  • 1 decade ago

    That SR points to 1989.......the next year they changed the numbering system. So, late 1989. I hope this helps

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