Difference between a A and B

[Aowner]

What are the differences between the 2 ? I hate to sound stupid but I'm curious.

 

[jd b puller]

The A is quite a bit bigger.

Motor on the styled A was 5.5" bore x 6.75" stroke (321 inches)

Motor on the styled B was 4.5 (later 4-11/16") bore x 5.5" stroke. (175 then 190 inch).

These were probably the largest qty 2 cylinder tractors produced.

Click on the link and learn away...
tractors

 

[pgl4vt]

The B was considered about 2/3 the size of an A.

 

[Tom N OK]

This is a brochure that might help out.

Tom
styled letter series

 

[BushogPapa]

While the Late Styled "B" was described as being about 2/3 the size of an "A", we found they would do about 90% of the work an "A" would do on a lot less gasoline..
Both were rated a "2-plow" tractor..
The "B" is versatile and handy to use, steers easily.
The "Late Styled B" has far more power than earlier models.

Ron..