The John Deere A is a 2WD row-crop tractor from the Two-Cylinder Letter Series series. This second generation was manufactured by John Deere in Waterloo, Iowa, USA from 1939 to 1947.
The JD A is equipped with one of two engines: a 5.1 L (309.0 cu·in) two-cylinder all-fuel engine or a 5.3 L (321.0 cu·in) two-cylinder all-fuel/gasoline engine and one of two transmissions: unsynchronized gear transmission with 4 forward and 1 reverse gear or unsynchronized gear transmission with 6 forward and 1 reverse gear.
The tractor could be equipped with the following engines:
- John Deere. It is a 5.1 L, 5,064 cm2, (309.0 cu·in) two-cylinder natural aspirated all-fuel engine with 140.0 mm (5.51 in) of the cylinder bore and 165.0 mm (6.5 in) of the piston stroke. The compression ratio rating is 4.45:1. This engine produced 18.2 PS (13.4 kW; 18.0 HP) at 975 rpm of output power.
- John Deere. It is a 5.3 L, 5,260 cm2, (321.0 cu·in) two-cylinder natural aspirated all-fuel/gasoline engine. The cylinder bore is 140.0 mm (5.51 in) and the piston stroke is 171.0 mm (6.73 in). The compression ratio rating is 4.45:1 for all-fuel version or 5.60:1 for gasoline version. This engine produced 34.5 PS (25.4 kW; 34.0 HP) at 975 rpm of output power.
The John Deere Model A is equipped with manual steering, differential mechanical expanding shoe brakes, an open operator station, and 53.0 liters (14 US gal.; 11.7 Imp. gal) fuel tank for an all-fuel version or 68.1 liters (18 US gal, 15 Imp. gal) for gasoline engine version.
John Deere A variants:
- AR – A-Regular with standard front axle
- AO – Orchard
- AW – Adjustable wide-front
- AN – Single front wheel
- AWH – High-crop, adjustable wide-front
- ANH – High-crop, single-front wheel
John Deere A Specifications
| General Specifications | |
| Model | John Deere A |
| Length | 3,400 mm (133.9 in) |
| Width | 2,190 mm (86.2 in) |
| Height | 1,620 mm (63.8 in) |
| Wheel base | – |
| Weight | 2,085 kg (4,597 lbs) |
| Fuel tank capacity |
All-fuel: 53.0 liters (14 US gal.; 11.7 Imp. gal) Gasoline: 68.1 liters (18 US gal, 15 Imp. gal) |
| Battery | 6V |
| Cabin type | Open operator station |
| Engine | |
| Engine model | John Deere |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 2 |
| Fuel type | All-fuel |
| Displacement | 5.1 L, 5,064 cm2, (309.0 cu·in) |
| Bore and stroke | 140.0 mm X 165.0 mm (5.51 in X 6.5 in) |
| Compression ratio | 4.45:1 |
| Horsepower (drawbar) | 18.2 PS (13.4 kW; 18.0 HP) at 975 rpm |
| Starter | Manual or electric (option) |
| Oil capacity: | 8.8 L (9.3 US. qt, 7.7 Imp. qt.) |
| Coolant capacity: | 36.0 L (38 US. qt, 31.7 Imp. qt.) |
| Engine | |
| Engine model | John Deere |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 2 |
| Fuel type | All-fuel / Gasoline |
| Displacement | 5.3 L, 5,260 cm2, (321.0 cu·in) |
| Bore and stroke | 140.0 mm X 171.0 mm (5.51 in X 6.73 in) |
| Compression ratio |
All-fuel: 4.45:1 Gasoline: 6.50:1 |
| Horsepower (drawbar) | 34.5 PS (25.4 kW; 34.0 HP) at 975 rpm |
| Starter | Manual or electric (option) |
| Oil capacity: | 10.4 L (11 US. qt, 9.2 Imp. qt.) |
| Transmission and chassis | |
| Chassis | 4×2 2WD |
| Steering type | Manual |
| Brakes | Differential mechanical expanding shoe |
| Transmission model | John Deere |
| Transmission type | Unsynchronized gear with dry disc clutch |
| Gears | 4 forward and 1 reverse |
| Speed | Forward: 10.1 kmh (6.3 mph) Reverse: 5.6 kmh (3.5 mph) |
| Transmission model | John Deere |
| Transmission type | Unsynchronized gear with dry disc clutch |
| Gears | 6 forward and 1 reverse |
| Tires | |
| Front tires |
Ag: 24×4 steel Ag: 5.50×16 |
| Rear tires |
Ag: 50×6 steel Ag: 9/10/11.00×38 |
| PTO (Power take-off shaft) | |
| Rear PTO type | Transmission |
| Rear PTO speed | 540 rpm |
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