John Deere Unstyled D
| | 1923 - 1953 |
|
| Two-Cylinder Letter Series | | Standard-tread tractor |
|
| Production |
| Manufacturer | John Deere
|
| Standard-tread tractor |
| Built in Waterloo, Iowa, USA |
| Total built | 160,000
|
| Original price was $1,000 in 1924 |
| The D had the longest run of any model of John Deere tractor, the styled and unstyled versions ran from March 1, 1923 until July 3, 1953. Serial numbers 31321 through 31412 are not model Ds, but are Waterloo Boy Ns which were built after model D production had begun. |
| John Deere D Engines |
| John Deere 7.6L 2-cyl all fuel |
| John Deere 8.2L 2-cyl all fuel |
| Fuel tank | 18 gal (early)
68.1 L
|
| | 23.5 gal (after 1931)
88.9 L
|
| Aux. fuel | 2.5 gal (early)
9.5 L
|
| | 1.5 gal (after 1931)
5.7 L
|
 Engine details ... |
| John Deere D Power |
| Drawbar (claimed) | 15 hp
11.2 kW
|
| Belt (claimed) | 27 hp
20.1 kW
|
| Plows | 3 (14-inch)
|
| Drawbar (tested) | 29.90 hp
22.3 kW
|
| Belt (tested) | 41.59 hp
31.0 kW
|
 Performance test details ... |
| Mechanical |
| Two-wheel drive |
| Manual steering |
| Open operator station with steel pan seat. |
| Power Take-off (PTO) |
| Rear PTO | optional
|
| Rear RPM | 525
|
| D Serial Numbers |
| 1924 | 30401 (model years)
|
| 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
|
FAQ: How to read a serial number table.
|
| D Serial Location |
 |
| Operator's platform, ahead of seat mount. |
| Belt Pulley |
| Diameter | 13.25 inches
33 cm
|
| Width | 8.5 inches
21 cm
|
| RPM | 900
|
| Speed | 3122 ft/min
951.59 meters/min
|
| References |
 |
| The John Deere Unstyled Letter Series by J.R. Hobbs |
| Tractors 1918-1976 published by John Deere |
| Quality Equipment for Your Farming Operations published in 1929, by John Deere |
| 15-27 Farm Tractor published in 1927, by John Deere |
| Two-Cylinder Model D Tractor published in 1937, by John Deere |
| Instructions for Model D (DIR-3C) published in 1930 |
©2000-2022 - TractorData.com®. Notice: Every attempt is made to ensure the data listed
is accurate. However, differences between sources, incomplete listings,
errors, and data entry mistakes do occur.
Consult official
literature from the manufacturer before attempting any service or repair.
Transmission details ...
John Deere D photos...
Full dimensions and tires ...