"A" At the end of serial number

Discussion in 'General IH Tech' started by Randall Barringer, Jan 31, 2017.


  1. Randall Barringer

    Randall Barringer Y-Block King

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    1961 Travelall
    the door tag has an "A" at the end of the serial number, but the title doesn't reflect it.
    What was the designation for the "A" if any?
    Any help appreciated.
     

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  2. 1975IH200

    1975IH200 Y-Block King

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    In the late 50's or early 60's a letter was added to the end of truck serial numbers to denote the range of the GVWR of the vehicle.

    The letter "A" denoted a GVWR of 10,000 pounds or less.

    This requirement was dropped in the late 60's or early 70's.
     
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  3. Randall Barringer

    Randall Barringer Y-Block King

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    Excellent info, thanks!
     
  4. stroker3

    stroker3 Lives in an IH Dealership

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    A quick question. Noticed the number B100SBxxxxxx. Is that a true 61 or is that a 60 and the sold date thing? Or does the B indicate a 61 and a C indicate a 62 since those two years are pretty much the same truck? Just asking.
     
  5. Randall Barringer

    Randall Barringer Y-Block King

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    The title says 1961, I'm not sure.
    I was doing a little legwork for another member on here. I'm sure he'll chime in when he can.
     
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  6. Kurt_M

    Kurt_M Farmall Cub

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    Not a lot of info on Wisconsin Historical site but I did find that the beginning serial number on Jan 4, 1960 was SB77997 and beginning number on Nov 1, 1960 was SB147601A so it was built somewhere in the July-August 1960 range I'd guess. I have a C120 4x4 SB211XXX built Oct 21, 1961. I couldn't find anything to show when they started the C-Line production, but seem to remember reading April, 1961 somewhere.
     
    Last edited: Feb 1, 2017
  7. Howard Pletcher

    Howard Pletcher Farmall Cub

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    A little history about IH serial numbers--Prior to the S-Line in 1955, each model had it's own serial number sequence starting with 501 for each model--R110-501, R120-501, etc.
    When the S-Line was introduced there was only one sequence of numbers for all IH light and medium trucks starting with S-501 and going up. Blocks of numbers were assigned for Fort Wayne trucks and Springfield trucks from the S-xxxx numbers
    When the A-Line was introduced in 1957, the serial numbers became SA-501 and up for both plants, all models.
    This was repeated when the B-Line was introduced in 1959, SB-501 and up. The SBs continued through later model revisions to the C and D-Lines up until the introduction of the 13 digit VIN in Oct. 1965.
    The SB in your serial indicates nothing special other than it was built after the start of the B-Line in 1959--logical since it is a B-Line. The only clue to the build date would be the numbers and then only by comparing to the numbers with known build dates like Kurt_M posted as there are no tables of numbers vs. months that I know of. If you order your Line Set Ticket, it will have the date it was roll tested at the end of the line.
     
    Last edited: Feb 1, 2017
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