Johnson 18 model year by serial number

Canoe2

Petty Officer 2nd Class
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Jul 22, 2012
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I bought an 18 hp parts motor and would like to make sure it lines up with my 1965 Fd-19 but the plate has been removed from the transom mount. Power head has the number 0509609 stamped on it. Can that send me to the year?
 

racerone

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Dec 28, 2013
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If parts motor is cheap then buy it.-----Most mechanical parts were the same / will fit from 57 to 76.
 

HighTrim

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Jun 21, 2007
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that serial number does not make sense. Is this a Canadian built motor by chance? A serial number that low would put it in 1946, which it obviously isn't.
 

Canoe2

Petty Officer 2nd Class
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Jul 22, 2012
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Yup, I am up in Thunder Bay Canada. Helluva deal for 2 18's I could not pass up. Is the lower unit compatible through that same period? Seems to me it changes in the early 70's
 

F_R

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Jul 7, 2006
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There have been minor internal changes in the lower units through the years, but the complete unit is interchangeable.
 

Canoe2

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Jul 22, 2012
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No Title

Here's the pics, internals look consistent to me but i would be interested to know what year it is. Thanks for the info on the compatibility.
 

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racerone

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Dec 28, 2013
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It is white.---That means itt is 66 or older.-----If it is marked 18 then it is 64 / 65 model.-----Great motors to own due to ease of repairs and parts interchangeability year after year !!
 

Canoe2

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Jul 22, 2012
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Fantastic, thanks very much, 66 or older dials it in enough for me. Cheers and happy Canadian Thanksgiving.
 

HighTrim

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Jun 21, 2007
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You are just north of me. Great pound for pound motors! Definitely built in the Peterborough plant with those serial numbers. I can pin point it for you, but def '64 or '65
 

HighTrim

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Jun 21, 2007
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From the cowl im pretty sure its a '65. the '64 "seahorse" medallion was two tone red and black.
 

Canoe2

Petty Officer 2nd Class
Joined
Jul 22, 2012
Messages
136
Awesome. Now my biggest problem is I have one too many of them since the one parts motor I wanted to buy came in a package of two of them.thanks again.
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
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38,572
Many folks can not accept the idea of ----" They don't build them like that any more "----These 22 cubic inch motors are a very clear example of this.---They will be running long after the new plastic parts motors are gone to land fill.
 
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