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Serial Number Confusion
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Ranse View Drop Down
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Joined: 11 Mar 2016
Location: Tennessee
Points: 782 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ranse Quote  Post ReplyReply Direct Link To This Post Topic: Serial Number Confusion
    Posted: 07 May 2020 at 8:00am
Someone educate me on the serial number chart on this site. Is the number under the year the first or last number of that year? For example, the first year for the D-10 was 1959 with serial number 1001. Did they start with number 1 and built 1001 tractors? Or did they start with 1001 and built 949 tractors with serial number 1950 being the first tractor for 1960?

Daddy always told me he bought our D-10 in 63, but it was actually 62 hold over. The serial number on the bell housing is D10  7133. Best I can tell, that makes it a 63 or 64, depends on how you read the chart. Either way, it doesn't look like it could be a 62. For some reason that disappoints me. I want the tractor to be a 62 like I always believed.

BTW, there's another serial right next to the one on the bell housing on the engine. That number is 12 - 3106 - R. What does that number mean? I just wondered why it would start with 12? This is a D-10 not a D-12.
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 22153 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 07 May 2020 at 8:06am
Most of the time, A-C started with s/n 1001.  Serial numbers listed are for the FIRST tractor built in that year.  A-C also didn't usually publish a partial years production. The D-17 started at s/n 1001 in the fall of 1957. The s/n book only shows 1958 and up, but yet there are 1957 build tractors.
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Jim.ME View Drop Down
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Points: 963 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Jim.ME Quote  Post ReplyReply Direct Link To This Post Posted: 07 May 2020 at 8:36am
Both scenarios are in this chart. Depending what model you are looking at it may be the last number of the year or it may be the first number of the year.

There is a note right below 1910's at the top that says "Early serial numbers are the ending number for each year". This apparently continued through the CA model. The last 1956 CA was s/n 38617. It appears the last 1957 CA serial number is unknown, as that year shows 38618+.

Go down to the 1950's and in the line between the CA and the D10 model lines there is a note that says "Serial numbers from here on are the beggining number for each year". So the D10's started with #1001. So the serial number shown is the first serial number of each year listed for the models below that note.
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john(MI) View Drop Down
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Joined: 12 Sep 2009
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Points: 9262 		Post Options Post Options   Thanks (0) Thanks(0)   Quote john(MI) Quote  Post ReplyReply Direct Link To This Post Posted: 07 May 2020 at 10:17am
"Data Book" shows that serial number to be a 63.
D14, D17, 5020, 612H, CASE 446
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C in Concord View Drop Down
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Points: 109 		Post Options Post Options   Thanks (0) Thanks(0)   Quote C in Concord Quote  Post ReplyReply Direct Link To This Post Posted: 07 May 2020 at 12:24pm
Originally posted by john(MI) john(MI) wrote:

"Data Book" shows that serial number to be a 63.
 
TractorData.com concurs, built in '63.
 
 
The other # is the engine serial number.  I found the answer to  your question on the '10' in the post below.  Refers to engine displacement.
 
Originally posted by Calvin Schmidt Calvin Schmidt wrote:

Gary. He is referring to the number on the rear flange of the engine not the tractor serial number. 10-xxxx is a 138, 12-xxx is a 149.  Have a nice 1960 original D-12 and the engine number is 10-xxxx 
 
Hope this helps!
Ben
Leave things better than you found them.

1941 Model C (restored 2020)
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