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Author  [Modern View]
old weldor

01-01-2021 11:55:11

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Looking at a mm ZB the owner says itís a 1950 but the serial number chart on this site only goes back to 1953. What gives?

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01-02-2021 00:22:28

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 Re: MM ZB in reply to old weldor, 01-01-2021 11:55:11  
As far as I know from about 48 to some time in 51 MM included the year in the serial number, right after the prefix. In other words the fourth and fifth digits indicated the year of manufacture.


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01-01-2021 13:37:03

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 Re: MM ZB in reply to old weldor, 01-01-2021 11:55:11  
Tony is correct, people often do not know year of the tractor.

ZB replaced the Z series in 1953. Z series had low seat platform and a hand clutch. ZB had a higher seat platform and foot clutch.

Engine serial plate should be on left side of engine (side opposite the starter). Tractor serial number should be on a plate on transmission case near the belt pulley.

Tractor plate should have 3 letters for model. ZBU, ZBE, or ZBN. ZB is tractor, U is Universal or dual wheel narrow front end, E is Extended or adjustable wide front end, and N is a single wheel front.

If you can get a serial # we can find the year.

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01-01-2021 13:19:11

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 Re: MM ZB in reply to old weldor, 01-01-2021 11:55:11  
ZB was the successor to the ZA and production started in 1953. No engine or drive train differences but lots of operator comfort changes. ZB has raised operator platform with foot clutch, brake pedals on right side, steering wheel in center. Also pressurized radiator and disc brakes instead of drums. Easy to tell the difference if looking at them.

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Tony in SD

01-01-2021 12:06:00

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 Re: MM ZB in reply to old weldor, 01-01-2021 11:55:11  
It might be a ZA or the owner is wrong about the year, which isnít uncommon with old tractors. Not a lot of difference between a ZA & ZB. So if it looks good Iíd buy it.

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