What is different between BN and A other than obvious?

jjensen

New User
Are they same engine and transmission essentially? Where does Cultivision come in? Just a decal? Or,? I am trying to learn about IH after 45 years of Deeres. I grew up on 806. My Mother turned down a JD 4020 because she said it smoked more under load than the Ih 806. Both were brand new.
 
The A has the motor and the operator off set to the rear end. The B and BN's have the engine centered to the rear end and only the operator is off set. I'm sure all the A's were wide front ends and all the B's/BN's were either single front wheel or dual narrow front ends. The B series was a 2 row cultivating tractor compared to one row for the A. The off set operator position allows a row being cultivated to pass directly in front of the operator so all that person has to do is look down to follow the row. That is where the term cultivision comes in to play. Most parts between the two tractors are the same but some parts are different. The parts book is one book with both tractors in it and if there is a difference in a part that is the place to find out.
 
The A has the motor and the operator off set to the rear end. The B and BN's have the engine centered to the rear end and only the operator is off set. I'm sure all the A's were wide front ends and all the B's/BN's were either single front wheel or dual narrow front ends. The B series was a 2 row cultivating tractor compared to one row for the A. The off set operator position allows a row being cultivated to pass directly in front of the operator so all that person has to do is look down to follow the row. That is where the term cultivision comes in to play. Most parts between the two tractors are the same but some parts are different. The parts book is one book with both tractors in it and if there is a difference in a part that is the place to find out.
Thank you so much. That helped me alot and will answer my 9 year old great nephews
ques on Farmalls. He has wanted a Cub. Got him talked out of that one. Just too light a tractor, he is going to grow up.
 
PS. That is a better write up than I could have ever found in any IH books. I have CWendels, so vague on some tractors.
 
Lot of big adults driving Cubs. I learned to drive tractors on an A tractor starting at about 8 years old.
 
A BN is an A with the extra extension to the left side to make it wide enough to straddle 2 narrow rows. A regular B straddles 2 wide rows with a wider left extension than a BN and both B's have a tricycle front or a single wheel front. All are offset for cultivision. Width is adjusted by a combination of wheels turned in or out or inside or outside of the wheel mountings. C's have the same engine with a row crop rear end with bar axles and the seat sets high. C's can have any of the 3 front axles, wide, tricycle or single wheel, they straddle 2 rows and the width adjusts anywhere along the bar axles....James
 

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Thank you. That makes a lot of sense why people are putting two seats on BN.
The seat on the left is for a rider. You often see Bs in a tractor parade with a child, girlfriend, or wife riding in the side seat, or child driving with an adult in the side seat to supervise.
 

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