9 material differences · fewer than 12
Tractor oneFahr D 400 A1955–1960No measured PTO figureTractor twoInternational Harvester WD-91940–1954No measured PTO figure
Which should you choose?
Read our verdict on the D 400 A and the WD-9 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
9 material differences · 2 fields identical or within 5%, which is not counted as material
| Field | D 400 A | WD-9 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 44.4 hp | 46.4 hp | — |
| Engine declared | KHD F3L 514 | INTERNATIONAL HARVESTER D-335 | differs |
| Displacement declared | 3.99 L | 5.48 L | +37% WD-9 |
| Maximum torque declared | 164 lb·ft · 223 N·m | — | — |
| Transmission | |||
| Top speed declared | 12.4–16.8 mph · 20–27 km/h | 16.2 mph · 26 km/h | differs |
| Clutch declared | pedal-operated dry single-plate clutch | Pedal operated dry ROCKFORD single plate clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 4.9 gpm · 18.5 L/min | — | — |
| Rear PTO speeds declared | 588 rpm | 538 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 6,217 lb · 2,820 kg | 5,851 lb · 2,654 kg | +6% D 400 A |
| Maximum permissible mass declared | 8,818 lb · 4,000 kg | — | — |
| Wheelbase declared | 91.3 in · 2,320 mm | 83.0 in · 2,108 mm | +10% D 400 A |
| Length declared | 143.7 in · 3,650 mm | 134.3 in · 3,410 mm | +7% D 400 A |
| Width declared | 73.4 in · 1,865 mm | 75.7 in · 1,924 mm | — |
| Ground clearance declared | 19.7 in · 500 mm | — | — |
| Turning radius, braked declared | 12.6 ft · 3.85 m | — | — |
| Fuel tank declared | 68.7 qt · 65 L | 140.0 qt · 132.5 L | +104% WD-9 |
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.
Fahr D 400 A sources
- Source: Traktorenlexikon, “Fahr D 400 A”
- Source: Traktorenlexikon, “Fahr D 45 L”
International Harvester WD-9 sources
- Source: Traktorenlexikon, “McCormick WD-9”