John Deere 20er-Baureihe
19 models in this series
John Deere 20 series – two worlds under one name: the two-cylinder 320 to 820 (1956–1958) and the New Generation 1020 to 4020 (1963–1972)
At John Deere the '20 series' label covers two entirely different tractor generations that share only their final digits. The first are the two-cylinder models 320, 420, 520, 620, 720 and 820 of 1956 to 1958 – the last 'Johnny Poppers' with the horizontal twin whose exhaust beat gave them the nickname, built in Waterloo and Dubuque, Iowa, as petrol, all-fuel, LPG and, on the 720/820, diesel tractors. In 1960 John Deere switched to four- and six-cylinders with the 'New Generation of Power'; the second group of 20s, the 1020, 2020, 3020 and 4020 of 1963 to 1972, is that new world, and with about 184,000 units built the 4020 became the best-selling tractor of its time and the benchmark of the 100 hp class.
Read on 3 more paragraphs
For Europe the Mannheim plant built the 1020, 2020 and 3020 as well as the intermediate 1120, 2120 and 3120; in the register OU marks the orchard utility version, VU the vineyard utility and (A) four-wheel drive. Values run from 18.5 to 73.6 kW (25 to 95 hp), 1,647 to 7,726 cm³ with two to six cylinders, unladen weights from 1,247 to 3,830 kg, lengths from 2,915 to 4,062 mm and widths from 980 to 2,276 mm.
The break of 1960 was the biggest in John Deere's history: the two-cylinders were considered outdated, and the new generation brought the Syncro-Range transmission, closed-centre hydraulics and, on the 4020 from 1969, the Power Shift option.
Used, the two-cylinders are collector pieces, while many New Generation models are still at work. When buying, transmission and hydraulics matter on the Waterloo 20s, engine and front axle on the Mannheim models; parts are readily available through John Deere and specialists.
Sources: SpecCodex register, model data: John Deere 20er-Baureihe, John Deere (manufacturer), John Deere 4020 (Wikipedia)
Models compared
12 of 19 models.
| 102004/1965–07/1975 | 1020 OU4/1967–10/1972 | 1020 VU4/1967–10/1972 | 11204/1967–7/1975 | 2020 OU4/1967–10/1972 | 30201964–1972 | 3206/1956–8/1958 | 5207/1956–8/1958 | 6206/1956–7/1958 | 8201967–1975 | 92004/1967–07/1975 | Modell 7207/1956–7/1958 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Power | 32.4 kW | 32.4 kW | 32.4 kW | 36.1 kW | 44.2 kW | 55.2 kW | 18.5 kW | 28.7 kW | 32.4 kW | 23.5 kW | 27.2 kW | 39.7 kW |
| Rated speed | 2,500 rpm | 2,500 rpm | 2,500 rpm | 2,500 rpm | 2,500 rpm | 2,410 rpm | 1,850 rpm | 1,325 rpm | 1,125 rpm | 2.100/2.400 rpm | 2.300/2.400 rpm | 1,125 rpm |
| PTO speed | 540/1000 | 540/1000 rpm | – | – | – | – | 540 | 540 | – | 540 | – | – |
| Linkage category | Cat I | Cat I | Cat I | Cat I/II | Cat I/II | Cat II | – | Cat II (opt) | – | Cat I | Cat I | – |
| Cylinders | 3 | 3 | 3 | 3 | 4 | 4 | 2 | 2 | 2 | 3 | 3 | 2 |
| Displacement | 2,490 cm³ | 2,490 cm³ | 2,490 cm³ | 2,695 cm³ | 3,320 cm³ | 4,425 cm³ | 1,647 cm³ | 3,111 cm³ | 4,964 cm³ | 2,472 cm³ | 2,490 cm³ | 5,908 cm³ |
| Torque | – | – | – | – | – | – | – | 122 Nm | 122 Nm | 125 Nm | 130 Nm | 122 Nm |
| Fuel tank capacity | 62.5 l | 62.5 l | 45 l | 62.5 l | 73.8 l | 109.8 l | 39.7 l | – | 84.2 l | 62.5 l | 62.5 l | 100.3 l |
| Forward gears | 8 | 8 | 8 | – | 8 | 8 | 4 | 6 | 6 | 6 | 8 | 6 |
| Reverse gears | 4 | 4 | 4 | – | 4 | 2 | 1 | 1 | 1 | 1 | 4 | 1 |
| Top speed | 20 km/h | 20 km/h | 20 km/h | 20 km/h | 20 km/h | 20 km/h | 20 km/h | 17 km/h | 19 km/h | 20 km/h | 20 km/h | 19 km/h |
| Wheelbase | 2,050 mm | 1,905 mm | 1,600 mm | 2,050 mm | 2,035 mm | 2,286 mm | 1,778 mm | 2,286 mm | 2,045 mm | 2,165 mm | 1,890 mm | 2,092 mm |
| Length | 3,430 mm | 3,430 mm | 3,100 mm | 3,430 mm | 3,570 mm | 3,518 mm | 2,940 mm | 3,372 mm | 3,435 mm | 3,425 mm | 3,425 mm | 3,308 mm |
| Width | 1,600 mm | 1,560 mm | 980 mm | 1,680 mm | 1,560 mm | 2,276 mm | 1,359 mm | 2,200 mm | 2,200 mm | 1,500 mm | 1,500 mm | 2,200 mm |
| Height | 1,615 mm | 1,185 mm | 1,500 mm | 1,540 mm | 1,366 mm | 1,969 mm | 1,410 mm | 1,518 mm | 1,676 mm | 1,515 mm | 1,515 mm | 2,242 mm |
| Unladen weight | 2,240 kg | 2,026 kg | 1,685 kg | 2,270 kg | 2,340 kg | 3,426 kg | 1,247 kg | 2,250 kg | 2,657 kg | 2,150 kg | 2,150 kg | 3,080 kg |
Models
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.
1020
The John Deere 1020 is a model in the 20er series. Production: 04/1965–07/1975. The engine delivers 44 hp (32.4 kW),...
1020 OU
With the 1020 OU, John Deere offers a model from the 20er series. Production: 4/1967–10/1972. The engine delivers 44...
1020 VU
The 1020 VU from John Deere is part of the 20er series. Production: 4/1967–10/1972. The engine delivers 44 hp (32.4...
1120
The John Deere 1120 belongs to the 20er series. Production: 4/1967–7/1975. The engine delivers 49 hp (36.1 kW), has...
2020 (A)
The John Deere 2020 (A) is a model in the 20er series. Production: 4/1967–10/1972. The engine delivers 60 hp (44.2...
2020 OU
With the 2020 OU, John Deere offers a model from the 20er series. Production: 4/1967–10/1972. The engine delivers 60...
2120 (A)
The 20er series from John Deere includes the 2120 (A). Production: 8/1968–8/1972. The engine delivers 68 hp (49.9...
3020
The 20er series from John Deere includes the 3020. Production: 1964–1972. The engine delivers 75 hp (55.2 kW), has 4...
3120 (A)
The 20er series from John Deere includes the 3120 (A). Production: 9/1969–8/1972. The engine delivers 81 hp (59.6...
320
The John Deere 320 belongs to the 20er series. Production: 6/1956–8/1958. The engine delivers 25.2 hp (18.5 kW), has...
4020
The John Deere 4020 belongs to the 20er series. Production: 1965–1972. The engine delivers 100 hp (73.6 kW), has 6...
520
The 20er series from John Deere includes the 520. Production: 7/1956–8/1958. The engine delivers 39 hp (28.7 kW),...
620
With the 620, John Deere offers a model from the 20er series. Production: 6/1956–7/1958. The engine delivers 44 hp...
820
With the 820, John Deere offers a model from the 20er series. Production: 1967–1975. The engine delivers 32 hp (23.5...
820 Diesel
The John Deere 820 Diesel belongs to the 20er series. Production: 7/1956–7/1958. The engine delivers 69 hp (50.7...
920
The 20er series from John Deere includes the 920. Production: 04/1967–07/1975. The engine delivers 37 hp (27.2 kW),...
Modell 420
The Modell 420 from John Deere is part of the 20er series. Production: 1956–1958. The engine delivers 28 hp (20.6...
Modell 720
The John Deere Modell 720 is a model in the 20er series. Production: 7/1956–7/1958. The engine delivers 54 hp (39.7...
Modell 720 Diesel
With the Modell 720 Diesel, John Deere offers a model from the 20er series. Production: 1956–1958. The engine...
