I attached a picture, showing serial number location (flat spot under #1 fuel injector).
Unfortunately, Super Major (normally) did not have a serial number on the tractor, the engine's serial number was the tractor's serial number. If the engine has been replaced, you do not know the date for the tractor. But there are visual signs that can roughly lead you to a date, some parts were changed during the years. There are also date codes to be found on the tractor.
If your serial number fits the time span when Super Major was produced, it is most likely the original engine and you have your tractor dated.
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