8 material differences · fewer than 12
Tractor oneJohn Deere 1020 OU1967–1972No measured PTO figureTractor twoJohn Deere 6201956–1958No measured PTO figure
Which should you choose?
Read our verdict on the 1020 OU and the 620 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
8 material differences · 3 fields identical or within 5%, which is not counted as material
| Field | 1020 OU | 620 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 43.4 hp | 43.4 hp | — |
| Engine declared | John Deere M 4 FL 4 or 3.164 DL-04 | — | — |
| Maximum torque declared | 112 lb·ft · 152 N·m | 90 lb·ft · 122 N·m | +25% 1020 OU |
| Transmission | |||
| Top speed declared | 12.4–15.5 mph · 20–25 km/h | 11.8 mph · 19 km/h | differs |
| Clutch declared | Pedal operated, two stage dry Fichtel and Sachs double clutch | Hand lever operated dry single plate clutch | differs |
| Hydraulics & hitch | |||
| Hydraulic centre declared | Closed centre | — | — |
| Pump flow declared | 6.6 gpm · 25.0 L/min | 8.9 gpm · 33.7 L/min | +35% 620 |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 4,467 lb · 2,026 kg | 5,858 lb · 2,657 kg | +31% 620 |
| Maximum permissible mass declared | 7,716 lb · 3,500 kg | — | — |
| Wheelbase declared | 75.0 in · 1,905 mm | 80.5 in · 2,045 mm | +7% 620 |
| Length declared | 135.0 in · 3,430 mm | 135.2 in · 3,435 mm | — |
| Width declared | 61.4–70.9 in · 1,560–1,800 mm | 86.6 in · 2,200 mm | differs |
| Ground clearance declared | 10.0 in · 255 mm | 13.0 in · 330 mm | +29% 620 |
| Turning radius, braked declared | 9.4 ft · 2.87 m | — | — |
| Fuel tank declared | 66.0 qt · 62.5 L | — | — |
Height is not in this table. It is not one measurement: the sources measure it to different points — over the cab on some machines, over the steering wheel or the exhaust on others — and the same tractor measured two ways can differ by most of a metre. It appears here only when both machines' figures carry the point they were measured to and it is the same point, which is not the case for these two. Each machine's own page prints its height as its source gives it.
John Deere 1020 OU sources
Source
- Source: Traktorenlexikon, “John Deere 1020 OU”
- Source: Traktorenlexikon, “John Deere 1020”
John Deere 620 sources
Source
- Source: Traktorenlexikon, “John Deere Modell 620”