The John Deere D is a 2WD standard-tread tractor from the Two-Cylinder Letter series. This tractor was manufactured by John Deere in Waterloo, Iowa, USA from 1923 to 1953. This second generation was manufactured from 1939 to 1953. The John Deere D is equipped with an 8.2 L (501.0 cu·in) two-cylinder all-fuel engine and unsynchronized gear transmission with 3 forward and 1 reverse gear.
The JD D standard-tread tractor used the John Deere engine. It is a 8.2 L, 8,210 cm2, (501.0 cu·in) two-cylinder natural aspirated all-fuel engine with 171.0 mm (6.73 in) of the cylinder bore and 178.0 mm (7.01 in) of the piston stroke. The compression ratio rating is 3.91:1.
The John Deere D is equipped with manual steering, integral mechanical or differential steering brakes, an open operator station, and 88.9 liters (23.5 US gal.; 19.6 Imp. gal) fuel tank.
John Deere D Specifications
| General Specifications | |
| Model | John Deere D |
| Length | 3,450 mm (135.8 in) |
| Width | 1,770 mm (69.7 in) |
| Height (steering wheel) | 1,570 mm (61.8 in) |
| Wheel base | – |
| Weight (operating) | 2,720 kg (5,997 lbs) |
| Fuel tank capacity | 88.9 liters (23.5 US gal.; 19.6 Imp. gal) |
| Battery | Two 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 | 8.2 L, 8,210 cm2, (501.0 cu·in) |
| Bore and stroke | 171.0 mm X 178.0 mm (6.73 in X 7.01 in) |
| Compression ratio | 3.91:1 |
| Horsepower | – |
| Starter | Manual or electric |
| Oil capacity: | 13.2 L (13.9 US. qt, 11.6 Imp. qt.) |
| Coolant capacity: | 53.0 L (56 US. qt, 46.6 Imp. qt.) |
| Transmission and chassis | |
| Chassis | 4×2 2WD |
| Steering type | Manual |
| Brakes | Integral mechanical or differential steering brakes |
| Transmission model | – |
| Transmission type | Unsynchronized gear |
| Gears | 3 forward and 1 reverse |
| Speed | Forward: 8.4 kmh (5.2 mph) Reverse: 3.2 kmh (2 mph) |
| Transmission oil capacity | 12.3 L (3.2 US. gal, 2.7 Imp. gal.) |
| Tires | |
| Front tires | Ag: 28×6 |
| Rear tires | Ag: 46×12 |
| PTO (Power take-off shaft) | |
| Rear PTO type | Transmission (optional) |
| Rear PTO speed | 525 rpm |
| John Deere D serial numbers | |
| 1939 | 143800 |
| 1940 | 146500 |
| 1941 | 148872 |
| 1942 | 151887 |
| 1943 | 154470 |
| 1944 | 155029 |
| 1945 | 158454 |
| 1946 | 161701 |
| 1947 | 164897 |
| 1948 | 171956 |
| 1949 | 180812 |
| 1950 | 187703 |
| 1951 | 189600 |
| 1952 | 190961 |
| 1953 | 191405 |
| Final | 191670 |
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