Farmall A
Power
21 hp[B] hp
Production
1939-1947
Engine
4-cylinder
Transmission
Gear
Weight
3450 lbs [1564 kg]
Drive
2WD
From the same series:
Introduction
International Harvester Farmall A, Row-Crop Tractor
The International Harvester Farmall A is a classic row-crop tractor produced between 1939 and 1947. Designed for specialized agricultural tasks, it is recognized for its unique 'Cultivision' offset engine configuration, which improved visibility for the operator during row-crop operations.
Engine and Performance
The tractor is powered by an International Harvester 4-cylinder engine with a displacement of 113.1 cubic inches (1.9 liters). It utilizes a liquid-cooling system and runs on kerosene. The engine produces approximately 21 horsepower at a rated speed of 1400 RPM. The firing order is 1-3-4-2, and the unit features a manual starter with an optional electric starting system supported by a 6-volt electrical battery.
Transmission and PTO
The drivetrain consists of a gear-type transmission providing 4 forward speeds and 1 reverse gear. It is equipped with a rear power take-off (PTO) shaft operating at a standard 540 RPM, utilizing a 1.125-inch shaft diameter, facilitating the connection of various implements.
Mechanical and Hydraulic Systems
The Farmall A utilizes a two-wheel drive configuration. Steering is handled manually, and braking is managed by mechanical contracting band brakes. For implement management, the tractor is equipped with the IH Pneumatic 'Lift-All' system, which provides hydraulic assistance for lifting and lowering mounted equipment.
Dimensions and Chassis
The tractor has a base weight of 2,400 lbs (1,088 kg), which can be increased to 3,450 lbs (1,564 kg) with ballast. It measures 106.3 inches in length and 76.8 inches in width. The design provides a generous rear axle clearance of 20.875 inches, allowing for operation over growing crops without damage.
Conclusion
With 117,552 units built, the Farmall A remains a significant model in agricultural history. Its offset engine design and row-crop capabilities make it a suitable machine for small-to-medium scale farming operations of the mid-20th century and a favored subject for tractor restoration and collection.
Production Information of Farmall, A
- The Farmall A and B were nearly identical tractors. The A featured an offset engine and wide front end. The offset engine was known as "Cultivision". The B had a centered engine, seat offset to the right, and narrow front end. A high-crop AV version was available.
- Row-Crop tractor
- Original price was $750 in 1947
| Manufacturer | Farmall (a part of International Harvester) |
|---|---|
| Total built | 117,552 |
| Total built(optional) | Louisville, Kentucky, USA |
| Factories | Chicago, Illinois, USA |
Dimension and Tires Information of Farmall, A
| Clearance (rear axle) | 20.875 inches [53 cm] |
|---|---|
| Length | 106.3 inches [270 cm] |
| Ballasted weight | 3450 lbs [1564 kg] |
| Weight | 2400 lbs [1088 kg] |
| Width | 76.8 inches [195 cm] |
| Front tread | 43 inches [109 cm] |
| Clearance (front axle) | 21.875 inches [55 cm] |
| Height (steering wheel) | 63.3 inches [160 cm] |
| Rear tread | 40 to 68 inches [101 to 172 cm] |
| Front tread | 44 to 64 inches [111 to 162 cm] |
| Ag front | 4.00-15 |
|---|---|
| Ag front(optional) | 5-30 |
| Ag front(optional) | 10-24 |
| Ag rear | 8-24 |
| Ag front | 9-24 |
Engine Specifications of Farmall, A
- International Harvester
- Liquid-cooled
- 4-cylinder
- Kerosene
| Firing order | 1-3-4-2 |
|---|---|
| Starter volts | 6 |
| Displacement | 113.1 ci [1.9 L] |
| Bore/Stroke | 3.00x4.00 inches [76 x 102 mm] |
| Rated RPM | 1400 |
| Rated RPM(optional) | Electric |
| Starter | Manual |
| Coolant capacity | 13 qts [12.3 L] |
| Coolant capacity | 13 qts [12.3 L] |
| Oil capacity | 5 qts [4.7 L] |
Transmission Information of Farmall, A
Transmission variants 1
| Manufacturer | International Harvester |
|---|---|
| Type | Gear |
| Gears | 4 forward and 1 reverse |
Mechanical Specs of Farmall, A
- Two-wheel drive
- Open operator station.
- Manual steering
- Mechanical contracting band brakes
Power Information of Farmall, A
| Rear PTO | Transmission |
|---|---|
| Rear PTO Type | 540 (1.125) |
Three-Point Hitch of Farmall, A
| Type | IH Pneumatic Lift-All |
|---|
Electrical System of Farmall, A
| Ground | Positive |
|---|---|
| Charging system | Generator |
| Battery volts | 6 |
Where it sits
With 21 hp[B] HP, the Farmall A sits just above Super A (17 HP) in Farmall's range. Its power puts it in the 14th percentile of 1930s models in our database (235 machines).
Frequently asked questions
How much horsepower does the Farmall A have?
The Farmall A delivers 21 hp[B] HP.
What years was the Farmall A produced?
The Farmall A was produced in 1939-1947.
What engine does the Farmall A have?
The Farmall A is powered by a 4-cylinder engine.
What transmission does the Farmall A use?
The Farmall A uses a Gear transmission.
How much does the Farmall A weigh?
The Farmall A weighs 3450 lbs [1564 kg].
Is the Farmall A 4WD?
The Farmall A is available in 2WD.