Sometimes you may find a serial number stamped on a silver aluminum disc that is pressed into a cavity on the engine block.
If you are looking for the year of the motor, post pictures of all sided of the powerhead and of the decals on the motor cover. From that we may be able to assist you.
08-05-2015 08:17 - edited 08-05-2015 08:22
When trying to research the serial number, the following message appears.
Invalid Serial Number OR Serial Number older than Model Year 1996
How about pictures of the decals on the motor cover and images of the powerhead with the cover removed? We need all sides to help determine the age of the motor.
didn't they used to put the serial number on the freeze plugs ??
Outboard motors do not use freeze plugs but sometimes the factory stamped identification characters or serial numbers on the silver colored aluminim discs that were tapped into a recessed area of the engine block. One of theses silver discs is pictured in a previous image.
02-25-2017 10:06 - edited 02-27-2017 08:29
I am trying to find out what year my 6HP seahorse us, no ID tags but the aluminum disc is stamped J3729885 can you help tell me the year
Is it possible to double check those numbers as they refer to a 1994 25 HP Johnson? Perhaps an in-focus closeup of the disc may help.
Can you also post photos of the decals on the cover and of the 4 sides of the motor with the cover removed?
To learn how to post photos, click on the HELP tab in the upper right corner of this page