Tractors > John Deere > B

John Deere B



John Deere B tractor photo
1935 - 1952
Model year
Two-Cylinder Letter Series
Row-Crop tractor
Series map:
B
A
31.1hp*
42.2hp*
*Estimated engine power for comparison only.
Production
ManufacturerJohn Deere
Row-Crop tractor
Built in Waterloo, Iowa, USA
Total built109,253 (late-styled B)
Original price was $1,900 in 1952
The "late-styled" B represented the final major upgrade to the John Deere model B when production began in February of 1947. The engine size was increased for a third time, and a gasoline-only configuration became available. The frame was now made from pressed steel, and the new padded seat sat on top of a battery box and electric starting and lighting became standard equipment. The Roll-o-Matic front end became available, and the BNH/BWH disappeared as separate models. The BW and BN remained, but now used a convertible front which allow the tractor's front-end to be changed. The rear axle was the key distinction with casting B2405R used for the plain model B, and B2406R used for the BW/BN.
John Deere B Engines
John Deere 3.1L 2-cyl gasoline
John Deere 3.1L 2-cyl all fuel
Fuel tank12 gal
45.4 L
Aux. fuel2 gal
7.6 L
Engine details ...
John Deere B Transmission
6-speed unsynchronized gear
Transmission details ...
John Deere B Power
Drawbar (claimed)25 hp
18.6 kW
Belt (claimed)28 hp
20.9 kW
Plows2 *14-inch
Drawbar (tested)24.62 hp
18.4 kW
Belt (tested)27.58 hp
20.6 kW
Performance test details ...
Mechanical
Two-wheel drive
Manual steering
Differential mechanical expanding shoe brakes
Open operator station with padded seat.
Photos
John Deere B
John Deere B photos...
Hydraulics
Typeopen center
Pressure750 psi
51.7 bar
Pump flow7.7 gpm
29.1 lpm
Tractor hitch
TypePower Lift
Power Take-off (PTO)
Rear PTOtransmission
Rear PTO Type540 (1.375)
Dimensions & Tires
Weight4300 lbs
1950 kg
Front tire5.50x16
Rear tire10.00x38
Full dimensions and tires ...
B Serial Number Location
John Deere B serial number location
Right side of the transmission case, on top, by pulley.
B Serial Numbers
1947201000
1948209295
1949230044
1950253025
1951275242
1952293030
Final310772

FAQ: How to read a serial number table.
Belt Pulley
Diameter9.6875 inches
24 cm
Width7.25 inches
18 cm
RPM1250
Speed3110 ft/min
947.93 meters/min
Electrical
Groundpositive
Charging systemgenerator
Battery volts6
References
B references literature
The John Deere Styled "Letter" Series by J.R. Hobbs
Operator's Manual B Series Tractors (OM-RB2-1048) published in 1948
Tractors 1918-1976 published by John Deere*
General-Purpose Tractors published in 1947, by John Deere
General-Purpose Tractors published in 1951, by John Deere
Facts About John Deere Tractor Wholesale Prices 1935-1961
*Publication contains known errors.
Page information
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Updated on July 20, 2023
http://techpubs.deere.com/ - Official operator manuals for purchase or download from Deere.
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