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Years in Production / 1932–1939
Farmall
F-20
Explore the specifications, hardware, and original references for the Farmall F-20.
29hp
Engine estimate · from PTO
2WD Only
Drive
1932–1939
Production years
Farmall
Manufacturer
F-20 / 01
At a glance
Production
Row-Crop tractor
Built in Rock Island, Illinois, USA
Original price was $1000 in 1936
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.
- Manufacturer
- Farmall (a part of International Harvester)
- Total Built
- 154,398
Pto
- Rear Pto
- transmission
- Rear Type
- 540 (1.125)
- Engine Rpm
- 505@1200
Serial Numbers
FAQ: How to read a serial number table.
- 1932
- FA-501
- 1933
- ------
- 1934
- FA-3001
- 1934
- TA-135000 (old style countershaft)
- 1935
- FA-9760
- 1936
- FA-41123
- 1937
- FA-72982
- 1938
- FA-112201
- 1939
- FA-136042
- Final
- FA-148810
Belt Pulley
- Diameter
- 14 inches35 cm
- Width
- 6.5 inches16 cm
- Rpm
- 654
- Speed
- 2395 ft/min730.00 meters/min
Mechanical
Two-wheel drive
Manual steering
Mechanical band brakes
Open operator station.
F-20 / 02
Under the hood
Engine Detail
International Harvester
distillate
4-cylinder
liquid-cooled vertical I-head
- Displacement
- 220.9 ci3.6 L
- Bore Stroke
- 3.75x5.00 inches95 x 127 mm
- Rated Rpm
- 1200
- Firing Order
- 1-3-4-2
- Coolant Capacity
- 40 qts (early)37.9 L
- Coolant Capacity
- 29 qts (late)27.4 L
- Cylinders
- 4
- Cooling
- liquid-cooled vertical I-head
Engine Options
International Harvester 3.6L 4-cyl distillate
- Fuel Tank
- 13 gal49.2 L
- Aux Fuel
- 0.875 gal3.3 L
F-20 / 03
Gears & controls
Transmission
- Transmission Type
- sliding gear
- Gears
- 4 forward and 1 reverse
- Clutch
- 279.4mm mechanical dry disc
F-20 / 04
Size. Stance. Footprint.
Dimensions
- Length
- 140 in355 cm
- Width
- 86 in218 cm
- Height
- 67 in170 cm
- Wheelbase
- 85 in215 cm
- Front tread
- 8.5 in21 cm
- Rear tread
- 57 in144 cm
Dimensions And Tires
- Wheelbase
- 85 inches215 cm
- Weight
- 4400 lbs1995 kg
- Front Tire
- 25x4
- Rear Tire
- 40x6
Tires And Tracks
- Front Ag
- 25x4 (steel)
- Rear Ag
- 40x6 (steel)
- Rear Ag
- 42x12 (steel)
- Rear Ag
- 9.00x36
F-20 / 05
Tractor Photos
See it in action
Videos
Watch Farmall F-20 videos from their original YouTube creators.
F-20 / 07
Tests (NTTL)
Nebraska Tractor Test 221
Kerosene 4-speed 2WDApril 3 - 16, 1934
Drawbar performance
Gear 2 used for power test.
Gear 1 used for pull test.
- Id
- 221
- Belt Power Max
- 23.11 hp17.2 kW
- Belt Fuel Use Max
- 2.2 gal/hour8.3 l/hour
- Max Power
- 15.39 hp11.5 kW
- Max Pull
- 2334 lbs1058 kg
Nebraska Tractor Test 264
Kerosene 4-speed 2WDJuly 20 - 29, 1936
Drawbar performance
Gear 3 used for power test.
Gear 1 used for pull test.
- Id
- 264
- Belt Power Max
- 28.0 hp20.9 kW
- Belt Fuel Use Max
- 3.1 gal/hour11.7 l/hour
- Max Power
- 20.5 hp15.3 kW
- Max Pull
- 2799 lbs1269 kg
Nebraska Tractor Test 276
Kerosene 4-speed 2WDNovember 5 - 12, 1936
Drawbar performance
Gear 3 used for power test.
Gear 1 used for pull test.
- Id
- 276
- Belt Power Max
- 27.84 hp20.8 kW
- Belt Fuel Use Max
- 2.8 gal/hour10.6 l/hour
- Max Power
- 20.66 hp15.4 kW
- Max Pull
- 2927 lbs1327 kg