Farmall M engine suffix code

Farmall M, Super M, 400, 450 & 560 Tractors, 1939-1963
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Farmall M engine suffix code

Postby Brockpend » Tue Sep 21, 2021 6:18 am

So If I had an M and the engine serial number read for example 12345 X9, what would the X9 mean?

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Re: Farmall M engine suffix code

Postby Jim Becker » Thu Sep 23, 2021 3:52 pm

I'm not aware of an X9 code for an engine number. X9 on a serial number means it has high speed gears.

The serial number is on a plate riveted to the bell housing. The engine number is stamped directly into the engine block.

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