John Deere Unstyled D (1923-1939)

John Deere Unstyled D (1923-1939)The John Deere Unstyled 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 first generation was manufactured from 1923 to 1939.

The John Deere model D is equipped with one of two engines: a 7.6 L (465.0 cu·in) two-cylinder all-fuel engine or an 8.2 L (501.0 cu·in) two-cylinder all-fuel engine and one of two transmissions: unsynchronized gear transmission with 2 forward and 1 reverse gear, used from 1923 to 1935, and unsynchronized gear transmission with 3 forward and 1 reverse gear, was introduced in 1935.

The tractor could be equipped with the following engines:

  • John Deere (1923-1927). It is a 7.6 L, 7,620 cm2, (465.0 cu·in) two-cylinder natural aspirated all-fuel engine with 165.0 mm (6.5 in) of the cylinder bore and 178.0 mm (7.01 in) of the piston stroke. The compression ratio rating is 3.91:1.
  • John Deere (1927-1939). It is a 8.2 L, 8,210 cm2, (501.0 cu·in) two-cylinder natural aspirated all-fuel engine. The cylinder bore is 171.0 mm (6.73 in) and the piston stroke is 178.0 mm (7.01 in). The compression ratio rating is 3.91:1.

The JD Unstyled D is equipped with manual steering, an open operator station, and 68.1 liters (18 US gal.; 15 Imp. gal) fuel tank.

John Deere Unstyled D Specifications

General Specifications
Model John Deere Unstyled D
Length Before 193: 2,760 mm (108.7 in)
After 1930: 3,300 mm (129.9 in)
Width 1,420 mm (55.9 in)
Height (hood) Before 193: 1,420 mm (55.9 in)
1930-1934: 1,470 mm (58.0 in)
After 1934: 1,550 mm (61.0 in)
Weight Early: 1,855 kg (4,090 lbs)
Late: 2,670 kg (5,886 lbs)
Fuel tank capacity Before 1931: 68.1 liters (18 US gal.; 15 Imp. gal)
After 1931: 88.9 liters (23.5 US gal.; 19.6 Imp. gal)
Battery
Cabin type Open operator station
Engine
Engine model John Deere
Engine type Four-stroke, liquid-cooled, inline
Cylinders 2
Fuel type All-fuel
Displacement 7.6 L, 7,620 cm2, (465.0 cu·in)
Bore and stroke 165.0 mm X 178.0 mm (6.5 in X 7.01 in)
Compression ratio 3.91:1
Horsepower
Coolant capacity: 49.2 L (52 US. qt, 43.3 Imp. qt.)
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 Electric
Oil capacity: 12.3 L (13 US. qt, 10.8 Imp. qt.)
Coolant capacity: Before 1931: 49.2 L (52 US. qt, 43.3 Imp. qt.)
After 1931: 53.0 L (56 US. qt, 46.6 Imp. qt.)
Transmission and chassis
Chassis 4×2 2WD
Steering type Manual
Brakes
Transmission model
Transmission type Unsynchronized gear
Gears 2 forward and 1 reverse
Speed Forward: 5.3 kmh (3.3 mph) Reverse: kmh (0 mph)
Transmission model
Transmission type Unsynchronized gear
Gears 3 forward and 1 reverse
Speed Forward: 6.4 kmh (4 mph) Reverse: 2.4 kmh (1.5 mph)
Tires
Front tires Ag: 8×5 (steel), 28×6 (steel), 7.50×18
Rear tires Ag: 46×12 (steel), 12.75×28
PTO (Power take-off shaft)
Rear PTO type Optional
Rear PTO speed 525 rpm
John Deere D serial numbers
1924 30401
1925 31280
1926 35309
1927 43410
1928 53388
1929 71645
1930 95367
1931 109944
1932 115509
1933 115665
1934 116273
1935 119100
1936 125079
1937 130700
1938 138413
1939 142300
Final 143799