Reply To: Need help with later model Merc 25HP two stroke ignition system

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August 16, 2025 at 8:42 pm #299017
David Stanton
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    I found the site below that lists Mercury serial number ranges by HP and year from 1969 to 1996.   Click on the HP range in the left column and the chart for those HPs years and serial numbers will come up.

    They leave off the “0” that’s in front of the letter at the beginning of the serial number.

    Dave

    https://maxrules.com/models/Merc_model_files/