Farmall BN
IH produced the Farmall BN
from 1940 to 1947, and there were about 1500 of them produced. The
Farmall BN is the same tractor as the Farmall B, except for a few
rear wheel changes. It provides a narrower rear wheel tread, varying
in 4 inch increments. It would allow the rear wheel to be placed from
56 to 84 inches apart, while the B only allowed the wheels to stretch
from 64 to 92 inches. The BN was designed to work row crops, such as
beets and potatoes.
Farmall B Serial Numbers
(Includes BN)
The serial number is located on the left seat
support bracket, under the seat.
Prefix Letters: B=FAB, BN=FABN
SERIAL NUMBER........................................YEAR
501 - 6743.........................................................1939
6744 - 41499.....................................................1940
41500 - 80738...................................................1941
80739 - 96389...................................................1942
no official production........................................1943
96390 - 113217..................................................1944
113218 - 146699................................................1945
146700 - 182963................................................1946
182964 - 198298 (Chicago)...............................1947
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