8 material differences · fewer than 12
Tractor oneFord 7401954–1957No measured PTO figureTractor twoJohn Deere 8201967–1975No measured PTO figure
Which should you choose?
We will not advise between these two machines, because their unladen weight differs by more than 25% (40%); they were not built in overlapping years (1954–1957; 1967–1975). The figures below are side by side so you can judge them yourself; each says whether it was measured, claimed or declared by its source.
Field by field
8 material differences · 2 fields identical or within 5%, which is not counted as material
| Field | 740 | 820 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 31.9 hp | 31.5 hp | — |
| Engine declared | — | John Deere M 4 3 L 9 or 3.152 DL-01 | — |
| Displacement declared | — | 2.47 L | — |
| Transmission | |||
| Top speed declared | 13.0 mph · 21 km/h | 12.4–15.5 mph · 20–25 km/h | differs |
| Clutch declared | Pedal operated dry single plate clutch | Pedal operated dry Fichtel & Sachs single disc clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 2.7–6.0 gpm · 10.2–22.7 L/min | 6.9 gpm · 26.0 L/min | differs |
| Pressure declared | — | 1,944 psi · 134 bar | — |
| Rear PTO speeds declared | 540 rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 3,391 lb · 1,538 kg | 4,740 lb · 2,150 kg | +40% 820 |
| Maximum permissible mass declared | — | 7,716 lb · 3,500 kg | — |
| Wheelbase declared | 85.3 in · 2,167 mm | 74.4 in · 1,890 mm | +15% 740 |
| Length declared | 132.1 in · 3,355 mm | 134.8 in · 3,425 mm | — |
| Width declared | — | 59.1–85.0 in · 1,500–2,160 mm | — |
| Ground clearance declared | 27.2 in · 692 mm | 15.7 in · 400 mm | +73% 740 |
| Turning radius, braked declared | — | 9.2 ft · 2.80 m | — |
| Fuel tank declared | 52.8 qt · 50.0 L | 66.0 qt · 62.5 L | +25% 820 |
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.
Ford 740 sources
- Source: Traktorenlexikon, “Ford 700”
John Deere 820 sources
- Source: Traktorenlexikon, “John Deere 820”