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Tractors > Farmall > F-20

Farmall F-20

Farmall F-20 tractor photo
1932 - 1939
Row-Crop tractor
Previous model:International Harvester Farmall
Next model:Farmall H
Series next:Farmall F-30
Series back:Farmall F-12

The Farmall F-20 was originally advertised as the "Increased-Power Farmall", and was similar to the orginal Farmall. The tractor paint scheme changed from gray to red on November 1, 1936 (the beginning of the 1937 production year).


Manufacturer:International Harvester
Factory:Chicago, Illinois, USA
 Rock Island, Illinois, USA
Total built:154,398
Original price (USD)
   $1000 (1936 )

Farmall F-20 Engine:

   International Harvester 3.6L 4-cyl distillate
full engine details ...


Fuel:13 gal [49.2 L]
Aux. fuel:0.875 gal [3.3 L]

Power Take-off (PTO):

Rear PTO:transmission
Rear RPM:540 (1.125)
Engine RPM:505@1200

Dimensions & Tires:

Wheelbase:85 inches [215 cm]
Weight:4400 lbs [1995 kg]
Front tire:25x4
Rear tire:40x6
full dimensions and tires ...

F-20 Serial Numbers:

photo of F-20 serial number

1932: 501
1933: 1251
1934: 3001
1935: 6382
1936: 32716
1937: 68749
1938: 105597
1939: 130685
1940: 135700

how to read serial numbers...


Farmall F-20 Power:

Drawbar (claimed):19.6 hp [14.6 kW]
PTO (claimed):26.67 hp [19.9 kW]
Drawbar (tested):20.66 hp [15.4 kW]
Belt (tested):28.0 hp [20.9 kW]
power test details ...


Chassis:4x2 2WD
Brakes:mechanical band
Cab:Open operator station.

Belt Pulley:

Diameter:14 inches [35 cm]
Width:6.5 inches [16 cm]
Speed:2395 ft/min [730.00 meters/min]

Page information:

Last update:November 13, 2015
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