Deutz (KHD) D 50.1 S or Steyr 658 (a)?
Which should you choose?
On performance, no comparable figure differs by more than its threshold: on this data the machines are level. On features, the Steyr 658 (a) is ahead on forward gears, PTO speeds and drive; the Deutz D 50.1 S is ahead on top speed and PTO independence.
- The Steyr 658 (a) suits heavy draft work (ploughing, cultivating) better on this data: four-wheel drive.
- The Deutz D 50.1 S suits road haulage better on this data: 20% (5.0 km/h / 3.1 mph) more top speed.
Generated by rule set compare@4 from the figures on the side-by-side table, allowed by route “the same stated configuration”. Measured figures are compared only with measured, claimed only with claimed, at the same test condition; differences within each figure’s tolerance are not called.
What decides it, question by question?
| Question | D 50.1 S | 658 (a) | Call |
|---|---|---|---|
| Which puts more power through the PTO shaft? | 36.5 kW (48.9 hp)Traktorenlexikon, “Deutz D 50 S (D 55)” | 36.4 kW (48.8 hp)Traktorenlexikon, “Steyr 658” | EvenEven on power at the PTO shaft (both power at the PTO, claimed): the difference is under the 10% threshold for claimed figures, too small to call. |
| Which turns a litre of fuel into more work at the shaft? | — | — | No figureNo call on fuel efficiency at the shaft: no figure on record for the D 50.1 S and the 658 (a). |
| Which pulls harder at the drawbar? | — | — | No figureNo call on drawbar power: no figure on record for the D 50.1 S and the 658 (a). |
| Which pumps more oil for implements? | — | 34.0 L/min (9.0 gpm)Traktorenlexikon, “Steyr 658” | No figureNo call on hydraulic flow: no figure on record for the D 50.1 S. |
| Which lifts more on the three-point hitch? | 1,650 kg (3,638 lb)Traktorenlexikon, “Deutz D 50 S (D 55)” | 2,400 kg (5,291 lb)Traktorenlexikon, “Steyr 658” | Not comparableNot comparable on three-point lift: the D 50.1 S: lift at an unstated point, as stated by the source (Traktorenlexikon, “Deutz D 50 S (D 55)”); the 658 (a): lift at the hitch ends, as stated by the source (Traktorenlexikon, “Steyr 658”) — not the same quantity, basis and condition. |
| Which is heavier, for traction? | 2,230 kg (4,916 lb) to 2,450 kg (5,401 lb)Traktorenlexikon, “Deutz D 50 S (D 55)” | 2,560 kg (5,644 lb)Traktorenlexikon, “Steyr 658” | EvenEven on weight (both unladen weight, as stated by the source): the difference is under the 10% threshold, too small to call. |
| Which may carry more ballast and load? | 3,900 kg (8,598 lb)Traktorenlexikon, “Deutz D 50 S (D 55)” | 4,000 kg (8,818 lb)Traktorenlexikon, “Steyr 658” | EvenEven on maximum permissible mass (both maximum permissible mass, as stated by the source): the difference is under the 10% threshold, too small to call. |
| Which has the wider choice of gears? | 8Traktorenlexikon, “Deutz D 50 S (D 55)” | 16Traktorenlexikon, “Steyr 658” | AheadThe Steyr 658 (a) has 100% more forward gears (8 gears) than the Deutz D 50.1 S (both forward gears, as stated by the source). |
| Which offers a creeper range? | YesTraktorenlexikon, “Deutz D 50 S (D 55)” | — | No figureNo call on a creeper range: not stated for the 658 (a). |
| Which is faster on the road? | 30 km/h (18.6 mph)Traktorenlexikon, “Deutz D 50 S (D 55)” | 25 km/h (15.5 mph)Traktorenlexikon, “Steyr 658” | AheadThe Deutz D 50.1 S has 20% more top speed (5.0 km/h / 3.1 mph) than the Steyr 658 (a) (both top speed forward, as stated by the source). |
| Which offers more PTO speeds? | 540/1060 rpmTraktorenlexikon, “Deutz D 50 S (D 55)” | 540/1000 rpmTraktorenlexikon, “Steyr 658” | AheadThe Steyr 658 (a) offers 1000 rpm at the PTO, which the Deutz D 50.1 S does not (as stated by the sources). |
| Which PTO runs independently of the ground drive? | independentTraktorenlexikon, “Deutz D 50 S (D 55)” | liveTraktorenlexikon, “Steyr 658” | AheadThe Deutz D 50.1 S has an independent PTO; the Steyr 658 (a)’s is live. |
| Which drives on both axles? | 2WDTraktorenlexikon, “Deutz D 50 S (D 55)” | 2WD / 4WDTraktorenlexikon, “Steyr 658” | AheadThe Steyr 658 (a) is available with four-wheel drive; the Deutz D 50.1 S is two-wheel drive (as stated by the sources). |
| Which is newer, and what about parts? | 1962–1964 | 1977–1979 | Ahead (a fact, not an advantage)The Steyr 658 (a) is newer: production began 15 years later. We hold no parts-availability data, so there is no call on parts. |
What does this mean in plain words?
- The Steyr 658 (a) has 100% more forward gears (8 gears) than the Deutz D 50.1 S (both forward gears, as stated by the source).
- The Deutz D 50.1 S has 20% more top speed (5.0 km/h / 3.1 mph) than the Steyr 658 (a) (both top speed forward, as stated by the source).
- The Steyr 658 (a) offers 1000 rpm at the PTO, which the Deutz D 50.1 S does not (as stated by the sources).
- The Deutz D 50.1 S has an independent PTO; the Steyr 658 (a)’s is live.
- The Steyr 658 (a) is available with four-wheel drive; the Deutz D 50.1 S is two-wheel drive (as stated by the sources).
- The Steyr 658 (a) is newer: production began 15 years later. We hold no parts-availability data, so there is no call on parts.
- Even on power at the PTO shaft (both power at the PTO, claimed): the difference is under the 10% threshold for claimed figures, too small to call.
- Even on weight (both unladen weight, as stated by the source): the difference is under the 10% threshold, too small to call.
- Even on maximum permissible mass (both maximum permissible mass, as stated by the source): the difference is under the 10% threshold, too small to call.
- Not comparable on three-point lift: the D 50.1 S: lift at an unstated point, as stated by the source (Traktorenlexikon, “Deutz D 50 S (D 55)”); the 658 (a): lift at the hitch ends, as stated by the source (Traktorenlexikon, “Steyr 658”) — not the same quantity, basis and condition.
- No figure on record for every machine, so no call on: fuel efficiency at the shaft, drawbar power, hydraulic flow and a creeper range.
← Every figure for both machines, side by side, with sources