Help in determining my Cub's serial number?

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Help in determining my Cub's serial number?

Postby Mike Duncan » Mon Oct 04, 2004 9:46 am

I'm looking for help and advice in determing the serial number for a Farmall cub as the serial number plate is missing. I'm new to the world of Farmall Cub's, as this is my first Farmall tractor.

I'm pretty certain that the cub is a 1950, as all the casting codes on everything ends with the letter "T" including the hyd. lift unit as well. I have found a 6 digit number "113504" on the engine block itself below the valve cover and above the oil fill tube. This number falls into the range of serial numbers for a 1950 and I'm wondering if this could be the serial number?

I have researched through several books and such and have found no help there. I am in the process of restoring the tractor and I have found that I can purchase a reproducation serial number plate from OEM tractor parts, but I want to be as accurate as possible with assigning a number to the tractor.

Also, can anyone tell me which serial number plate I should order? OEM lists three types (New Style, Old Style & 2-Line Style) and I have no idea which one the '50 series cub would have had.

Any help is appreciated................Thanks Mike Duncan
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Postby Bigdog » Mon Oct 04, 2004 10:08 am

Mike, without the original serial number plate, there is no way to tell the correct serial number for your cub. Your assumptions based on the casting codes are correct for the year of the castings and the engine serial number could be close to the number for the tractor but likely would not be the same.
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Postby George Willer » Mon Oct 04, 2004 10:54 am

Mike,

The only other way to find the true number would would be from the original sales documents that rarely come with a tractor. The number is nowhere else on the tractor other than the plate. IH did not keep the records. My suggestion would be to have the number on the plate listed as "unknown". The serial number you found for the engine will be a higher number than the original serial for the tractor, due to the fact that there were engines built for other uses than tractors.

My '50 demonstrator's number is 100182 and some of the casting numbers are "S" indicating late '49, so yours is probably somewhat higher.
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Postby George Willer » Mon Oct 04, 2004 11:57 am

Mike,

Here's another data point. My engine serial number is FCUBM101317. It is 1135 higher than the tractor's serial number of 100182, so. since your tractor is a bit later, I'd guess the difference is greater, and your serial number is lower than 112369. In any case, with no way to document it with certainty, I would not make up a counterfeit number.
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Postby Ron L » Mon Oct 04, 2004 3:17 pm

Mike. BD & GW are right on. (GW's "unknown" sounds like a good idea) I think I remember Jim Becker mentioning the approximate time frame where the engine serial numbers started to increase over the ser#'s on the tractor.

Just a side note. My '48 - Serial # 55108 has an engine ser# FCUBM 55515 with the date tag 11-22-R. The head has a date tag of 8-9-R. All original with the tractor (as per P.O.)
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