Farmall B

Farmall B tractor photo
1939 - 1947
Row-Crop tractor
ManufacturerFarmall (a part of International Harvester)
Row-Crop tractor
FactoriesChicago, Illinois, USA
 Louisville, Kentucky, USA
Total built75,241
Original price$770
The Farmall A and B were nearly identical tractors. The A featured an offset engine and wide front end. The B had a centered engine, seat offset to the right, and narrow front end.
Bfull width
BNnarrow tread
Farmall B Engines
International Harvester 1.9L 4-cyl gasoline
International Harvester 1.9L 4-cyl kerosene
Fuel tank10 gal
37.9 L
Aux. fuel1 gal
3.8 L
Engine details ...
Farmall B Power
Plows1 (16 inch)
Drawbar (tested)16.21 hp
12.1 kW
Belt (tested)18.39 hp
13.7 kW
Performance test details ...
Two-wheel drive
Manual steering
Open operator station.
Power Take-off (PTO)
Rear RPM540
Dimensions & Tires
Weight2400 lbs
1088 kg
Front tire6-12
Rear tire9-24
Full dimensions and tires ...
B Serial Number Location
Farmall B serial number location
Seat support bracket
B Serial Numbers
1947182964 (Chicago)
1947200001 (Louisville)

FAQ: How to read a serial number table.
Belt Pulley
Diameter8.5 inches
21 cm
Width6 inches
15 cm
Speed2574 ft/min
784.56 meters/min
B references literature
Farmall Letter Series Tractors by Lee Klancher
Page information
Peter Easterlund - owner of
Copyright 2023®
TractorData is a family-owned small business located in Minnesota that has been providing reference information on tractors since 1999.
Peter Easterlund - owner/author
Updated on March 24, 2023
©2000-2023 -®. Notice: Every attempt is made to ensure the data listed is accurate. However, differences between sources, incomplete listings, errors, and data entry mistakes do occur. Consult official literature from the manufacturer before attempting any service or repair.