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Farmall F-20

Farmall F-20 tractor
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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). A number of F-20s were built in early 1934 using the Farmall Regular rear end and F-20 engine. These tractors are identified by a TA serial number prefix.
Farmall F-20Farmall tractorsInternational Harvesterrow-crop tractor19321939engine specstransmissionpowerdimensions
Power29 hp[P]
Founded1932 - 1939
ModelF-20

Technical Specifications

Detailed specifications and technical data for Farmall F-20

Power

Plows:2
Belt (tested):28.0 hp (20.9 kW)
PTO (claimed):26.67 hp (19.9 kW)
Drawbar (tested):20.66 hp (15.4 kW)
Drawbar (claimed):19.6 hp (14.6 kW)

Tires

Ag rear:40x6 (steel), 42x12 (steel), 9.00x36
Ag front:25x4 (steel)

Engine

Cooling:liquid-cooled vertical I-head
Aux. fuel:0.875 gal (3.3 L)
Cylinders:4-cylinder
Fuel tank:13 gal (49.2 L)
Fuel type:distillate
Rated RPM:1200
Bore/Stroke:3.75x5.00 inches (95 x 127 mm)
Displacement:220.9 ci (3.6 L)
Firing order:1-3-4-2
Manufacturer:International Harvester
Coolant capacity:40 qts (early) (37.9 L), 29 qts (late) (27.4 L)

Dimensions

Width:86 inches (218 cm)
Length:140 inches (355 cm)
Weight:4400 lbs (1995 kg)
Wheelbase:85 inches (215 cm)
Rear tread:74 inches (187 cm), 57 inches (144 cm) (Narrow and Fairway model F-20)
Front tread:8.5 inches (21 cm)
Height (hood):58 inches (147 cm)
Height (steering wheel):67 inches (170 cm)

Mechanical

Drive:Two-wheel drive
Brakes:Mechanical band brakes
Steering:Manual steering
Operator station:Open operator station

Production

Type:Row-Crop tractor
Notes: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). A number of F-20s were built in early 1934 using the Farmall Regular rear end and F-20 engine. These tractors are identified by a TA serial number prefix.
Built in:Rock Island, Illinois, USA
Total built:154,398
Original price:$1000 in 1936
Years produced:1932 - 1939

Belt Pulley

RPM:654
Speed:2395 ft/min (730.00 meters/min)
Width:6.5 inches (16 cm)
Diameter:14 inches (35 cm)

Transmission

Type:sliding gear
Gears:4 forward and 1 reverse
Clutch:279.4mm mechanical dry disc

Serial Numbers

1932:FA-501
1933:------
1934:FA-3001
1935:FA-9760
1936:FA-41123
1937:FA-72982
1938:FA-112201
1939:FA-136042
Final:FA-148810
1934 (old style countershaft):TA-135000

Power Take-off (PTO)

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

Related Models

Farmall F-12

Model:F-12

Farmall F-30

Model:F-30