8 material differences · fewer than 12
Tractor oneDeutz (KHD) D 50.1S (D 55)1962–1965No measured PTO figureTractor twoFordson County Super IV1960–1964No measured PTO figure
Which should you choose?
Read our verdict on the D 50.1S (D 55) and the Super IV → 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 · 1 fields identical or within 5%, which is not counted as material
| Field | D 50.1S (D 55) | Super IV | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 51.1 hp | 51.2 hp | — |
| Engine declared | — | FORD Mk-3 | — |
| Displacement declared | — | 3.61 L | — |
| Maximum torque declared | — | 173 lb·ft · 234 N·m | — |
| Transmission | |||
| Top speed declared | 12.4–17.4 mph · 20–28 km/h | 12.4 mph · 20.0 km/h | differs |
| Clutch declared | Double clutch in the flywheel | Pedal-operated dry single-plate clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | — | 5.9 gpm · 22.4 L/min | — |
| Rear PTO speeds declared | 540/1060 rpm | 540 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 5,004 lb · 2,270 kg | 6,283 lb · 2,850 kg | +26% Super IV |
| Wheelbase declared | 86.6 in · 2,200 mm | 70.9 in · 1,800 mm | +22% D 50.1S (D 55) |
| Length declared | 146.5 in · 3,720 mm | 130.3 in · 3,310 mm | +12% D 50.1S (D 55) |
| Width declared | 70.9 in · 1,800 mm | — | — |
| Ground clearance declared | 19.9 in · 505 mm | 13.5 in · 342 mm | +48% D 50.1S (D 55) |
| Turning radius, braked declared | 12.5 ft · 3.80 m | 18.0 ft · 5.50 m | +45% Super IV |
| Fuel tank declared | — | 72.4 qt · 68.5 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.
Deutz (KHD) D 50.1S (D 55) sources
- Source: Traktorenlexikon, “Deutz D 50.1S (D 55)”
Fordson County Super IV sources
- Source: Traktorenlexikon, “Fordson County Super IV”
- Source: Traktorenlexikon, “Fordson Power Major”