Identify a Mercury Outboard

pckeen

Commander
Joined
Jun 20, 2012
Messages
2,067
I have what I believe to be a 20hp Mercury Outboard, perhaps a Canadian model, with a serial number on the transom of 7183895, and a serial number on the motor of 7202509.

Can anyone help me identify the year of this motor?
 

mjf55

Chief Petty Officer
Joined
Jun 17, 2014
Messages
462
pckeen, based on the serial number starting with a 7 means it is a Canadian mode. That was the easy part.
for 20HP, 80/81 had a starting sn 7148238. No entry in any of the tables until 1986 when the sn start with an alpha character (A708966)

BUT, both 18 and 25 hp motors pass thru your sn numbers.

for both 18HP and 25HP, transom sn of 7183895 would indicate 1982. The motor sn 7202509 would indicate 1983

Can you determine for sure what HP you have or is this close enough.

Fun Times - can you help out here?
 
Last edited:

pckeen

Commander
Joined
Jun 20, 2012
Messages
2,067
It's most likely a 20hp, as that's what the cowling says, but the difficulty is, I don't know if someone replaced the cowling...
 

Fun Times

Moderator
Staff member
Joined
May 16, 2009
Messages
9,076
Serial number 7202509 is coming up as an 1983 MERCURY 25 HP (ML) Model number 1025223. Here's a parts guide through iboats, http://www.iboats.com/MERCURY-25-HP-2-CYL-1980-1983/dm/view_id.1701474 ....If you need part images, then here's someone else's, https://www.perfprotech.com/mercury-marine-parts-catalog/umodel/14790

7183895 is coming up as an 1980 MERCURY 25 HP (M) Model number 1025200 MERC. Use the same parts guide Merc part number 90-90648 as linked above. Qty Required For Repair: 1
Minimum Order Qty: 1
 

Fun Times

Moderator
Staff member
Joined
May 16, 2009
Messages
9,076
More like a sleeper when someone with a 20 HP tries to pass you on up.:becky:
 
Top