10 material differences · fewer than 12
Tractor oneDeutz (KHD) D 50.1 S1962–1964No measured PTO figureTractor twoSteyr 658 (a)1977–1979No measured PTO figure
Which should you choose?
Read our verdict on the D 50.1 S and the 658 (a) → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
10 material differences · 4 fields identical or within 5%, which is not counted as material
| Field | D 50.1 S | 658 (a) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 51.1 hp | 54.3 hp | +6% 658 (a) |
| Engine declared | KHD F4L 712 or F4L 812 | Steyr WD-408.42 | differs |
| Displacement declared | 3.40 L | 3.14 L | +8% D 50.1 S |
| Maximum torque declared | 127 lb·ft · 173 N·m | 142 lb·ft · 192 N·m | +11% 658 (a) |
| Transmission | |||
| Top speed declared | 18.6 mph · 30 km/h | 15.5 mph · 25 km/h | +20% D 50.1 S |
| Clutch declared | — | Dry Fichtel & Sachs single-plate clutch | — |
| Hydraulics & hitch | |||
| Pump flow declared | — | 9.0 gpm · 34.0 L/min | — |
| Pressure declared | 2,134 psi · 147 bar | 2,489 psi · 172 bar | +17% 658 (a) |
| Rear PTO speeds declared | 540/1060 rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 4,916–5,401 lb · 2,230–2,450 kg | 5,644 lb · 2,560 kg | differs |
| Maximum permissible mass declared | 8,598 lb · 3,900 kg | 8,818 lb · 4,000 kg | — |
| Wheelbase declared | 86.6 in · 2,200 mm | 83.9 in · 2,130 mm | — |
| Length declared | 146.5 in · 3,720 mm | 139.6 in · 3,547 mm | — |
| Width declared | 74.4 in · 1,890 mm | 66.1 in · 1,680 mm | +13% D 50.1 S |
| Ground clearance declared | 19.9 in · 505 mm | 15.7 in · 400 mm | +26% D 50.1 S |
| Turning radius, braked declared | 11.6 ft · 3.55 m | 11.3 ft · 3.45 m | — |
| Fuel tank declared | 67.6 qt · 64 L | 87.7 qt · 83.0 L | +30% 658 (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.
Deutz (KHD) D 50.1 S sources
- Source: Traktorenlexikon, “Deutz D 50 S (D 55)”
Steyr 658 (a) sources
- Source: Traktorenlexikon, “Steyr 658”