7 material differences · fewer than 12
Tractor oneFord 1920 (A)1987–2000No measured PTO figureTractor twoHermann Lanz D 6341974–1978No measured PTO figure
Which should you choose?
Read our verdict on the 1920 (A) and the D 634 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
7 material differences · 3 fields identical or within 5%, which is not counted as material
| Field | 1920 (A) | D 634 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 31.5 hp | 33.4 hp | +6% D 634 |
| Engine declared | ISHIKAWAJIMA-SHIBAURA N-844 | MWM D 226-2 | differs |
| Displacement declared | 2.00 L | 2.08 L | — |
| Maximum torque declared | 87 lb·ft · 118 N·m | — | — |
| Transmission | |||
| Top speed declared | 13.7 mph · 22 km/h | 17.5 mph · 28.1 km/h | +28% D 634 |
| Clutch declared | Pedal-operated, dry DAIKIN double clutch | — | — |
| Hydraulics & hitch | |||
| Pump flow declared | 7.9 gpm · 30.0 L/min | — | — |
| Pressure declared | 1,421 psi · 98 bar | — | — |
| Rear PTO speeds declared | 540 rpm | 580/1120 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 2,844 lb · 1,290 kg | 3,924 lb · 1,780 kg | +38% D 634 |
| Wheelbase declared | 69.9 in · 1,775 mm | 81.9 in · 2,080 mm | +17% D 634 |
| Length declared | 126.4 in · 3,210 mm | 129.9 in · 3,300 mm | — |
| Width declared | 59.6–75.0 in · 1,515–1,905 mm | 59.8 in · 1,520 mm | differs |
| Ground clearance declared | 12.6 in · 320 mm | 13.0 in · 330 mm | — |
| Fuel tank declared | 41.2 qt · 39.0 L | 37.0 qt · 35 L | +11% 1920 (A) |
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 1920 (A) sources
- Source: Traktorenlexikon, “Ford 1920”
Hermann Lanz D 634 sources
- Source: Traktorenlexikon, “HELA D634”