11 material differences · fewer than 12
Tractor oneHanomag Perfekt 401 (S)1964–1967No measured PTO figureTractor twoJohn Deere 8201967–1975No measured PTO figure
Which should you choose?
Read our verdict on the Perfekt 401 (S) and the 820 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
11 material differences · 3 fields identical or within 5%, which is not counted as material
| Field | Perfekt 401 (S) | 820 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 31 hp | 31.5 hp | — |
| Engine declared | Hanomag-Borgward D 301 R | John Deere M 4 3 L 9 or 3.152 DL-01 | differs |
| Displacement declared | 1.80 L | 2.47 L | +38% 820 |
| Maximum torque declared | 73 lb·ft · 99 N·m | — | — |
| Transmission | |||
| Top speed declared | 12.4 mph · 20 km/h | 12.4–15.5 mph · 20–25 km/h | differs |
| Clutch declared | dual clutch by Fichtel & Sachs | Pedal operated dry Fichtel & Sachs single disc clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 5.0 gpm · 19.0 L/min | 6.9 gpm · 26.0 L/min | +37% 820 |
| Pressure declared | — | 1,944 psi · 134 bar | — |
| Rear PTO speeds declared | 540 rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 3,924 lb · 1,780 kg | 4,740 lb · 2,150 kg | +21% 820 |
| Maximum permissible mass declared | — | 7,716 lb · 3,500 kg | — |
| Wheelbase declared | 80.1 in · 2,035 mm | 74.4 in · 1,890 mm | +8% Perfekt 401 (S) |
| Length declared | 133.1 in · 3,380 mm | 134.8 in · 3,425 mm | — |
| Width declared | 62.2 in · 1,580 mm | 59.1–85.0 in · 1,500–2,160 mm | differs |
| Ground clearance declared | 15.7 in · 400 mm | 15.7 in · 400 mm | — |
| Turning radius, braked declared | 11.2 ft · 3.40 m | 9.2 ft · 2.80 m | +21% Perfekt 401 (S) |
| Fuel tank declared | 49.7 qt · 47 L | 66.0 qt · 62.5 L | +33% 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.
Hanomag Perfekt 401 (S) sources
- Source: Traktorenlexikon, “Hanomag Perfekt 401 (S)”
John Deere 820 sources
- Source: Traktorenlexikon, “John Deere 820”