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Farmall A

Farmall A tractor
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The Farmall A is a row-crop tractor produced from 1939 to 1947 by Farmall, a part of International Harvester. It featured an offset engine known as "Cultivision" and a wide front end. The Farmall A and B were nearly identical, with the B having a centered engine and narrow front end. Variants included the AV for vegetable crops and the AI for industrial use. The tractor was powered by a 1.9L 4-cylinder gasoline or kerosene engine, with a 4-speed gear transmission. It had a drawbar power of about 17.35 hp (claimed) and a belt power of 19.06 hp (claimed). The Farmall A had a weight of 2400 lbs and featured IH Pneumatic Lift-All hitch and a rear PTO with 540 rpm. It was manufactured in Chicago, Illinois and Louisville, Kentucky, with a total production of 117,552 units.
Farmall AFarmall tractorInternational Harvester1939 tractor1940 tractor1947 tractorrow-crop tractor1.9L engine4-speed transmissiontractor specs
Power21 hp[B]
Founded1939 - 1947
ModelA

Technical Specifications

Detailed specifications and technical data for Farmall A

Power

Plows:1 16-inch
Belt (tested):18.34 hp (13.7 kW)
Belt (claimed):19.06 hp (14.2 kW)
Drawbar (tested):16.32 hp (12.2 kW)
Drawbar (claimed):17.35 hp (12.9 kW)

Engine

Starter:manual; electric Optional
Idle RPM:900-1400
Rated RPM:1400
Bore/Stroke:3.00x4.00 inches (76 x 102 mm)
Compression:6.0:1
Displacement:113.1 ci (1.9 L)
Firing order:1-3-4-2
Oil capacity:5 qts (4.7 L)
Starter volts:6
Engine options:International Harvester 1.9L 4-cyl gasoline; International Harvester 1.9L 4-cyl kerosene
Coolant capacity:13 qts (12.3 L)
Oil change interval:120 h
Engine Detail Gasoline:International Harvester C113, gasoline, 4-cylinder, liquid-cooled inline

Variants

AI:International industrial
AV:Vegetable crop

Electrical

Ground:positive
Battery volts:6
Charging system:generator

Mechanical

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

Production

Notes: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.
Factories:Chicago, Illinois, USA; Louisville, Kentucky, USA
Total built:117,552
Manufacturer:Farmall (a part of International Harvester)
Original price:$750 in 1947
Years produced:1939 - 1947

Belt Pulley

RPM:1157
Speed:2574 ft/min (784.56 meters/min)
Width:6 inches (15 cm)
Diameter:8.5 inches (21 cm)

Transmission

Type:gear
Gears:4 forward and 1 reverse
Manufacturer:International Harvester

Tractor hitch

Type:IH Pneumatic Lift-All

Serial Numbers

1939:FAA501
1940:FAA6744
1941:FAA41500
1942:FAA80739
1944:FAA96390
1945:FAA113218
1946:FAA146700
1947 Chicago:FAA182964
Final Chicago:FAA198298
1947 Louisville:FAA200001
Final Louisville:FAA220829

Dimensions & Tires

Width:76.8 inches (195 cm)
Length:106.3 inches (270 cm)
Weight:2400 lbs (1088 kg)
Rear tire:8-24
Front tire:4.00-15
Rear tread:40 to 68 inches (101 to 172 cm)
Front tread:43 inches (109 cm); 44 to 64 inches (111 to 162 cm)
Additional tires:9-24; 10-24; 5-30
Ballasted weight:3450 lbs (1564 kg)
Clearance (rear axle):20.875 inches (53 cm)
Clearance (front axle):21.875 inches (55 cm)
Height (steering wheel):63.3 inches (160 cm)

Power Take-off (PTO)

Rear PTO:transmission
Rear PTO Type:540 (1.125)

Related Models

Farmall Super A

Model:Super A