Deutz (KHD) D 25 or Fahr D 135?
Which should you choose?
On performance, every comparable figure that differs favours the Deutz D 25: maximum permissible mass. On features, the Fahr D 135 is ahead on forward gears.
- The Deutz D 25 suits road haulage better on this data: 33% (540 kg / 1,190 lb) more maximum permissible mass.
Generated by rule set compare@4 from the figures on the side-by-side table, allowed by route “similar machines”. 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 25 | D 135 | Call |
|---|---|---|---|
| Which puts more power through the PTO shaft? | 14.0 kW (19 hp)Traktorenlexikon, “Deutz D 25” | 13.2 kW (18 hp)Traktorenlexikon, “Fahr D 135” | 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 25 and the D 135. |
| Which pulls harder at the drawbar? | — | — | No figureNo call on drawbar power: no figure on record for the D 25 and the D 135. |
| Which pumps more oil for implements? | 16.0 L/min (4.2 gpm)Traktorenlexikon, “Deutz D 25 S” | — | No figureNo call on hydraulic flow: no figure on record for the D 135. |
| Which lifts more on the three-point hitch? | — | 1,100 kg (2,425 lb)Traktorenlexikon, “Fahr D 135” | No figureNo call on three-point lift: no figure on record for the D 25. |
| Which is heavier, for traction? | 1,325 kg (2,921 lb)Traktorenlexikon, “Deutz D 25” | 1,160 kg (2,557 lb)Traktorenlexikon, “Fahr D 135” | Ahead (a fact, not an advantage)The Deutz D 25 is 14% heavier (165 kg / 364 lb) than the Fahr D 135 (both unladen weight, as stated by the source). |
| Which may carry more ballast and load? | 2,200 kg (4,850 lb)Traktorenlexikon, “Deutz D 25 S” | 1,660 kg (3,660 lb)Traktorenlexikon, “Fahr D 135” | AheadThe Deutz D 25 has 33% higher maximum permissible mass (540 kg / 1,190 lb) than the Fahr D 135 (both maximum permissible mass, as stated by the source). |
| Which has the wider choice of gears? | 5Traktorenlexikon, “Deutz D 25” | 8Traktorenlexikon, “Fahr D 135” | AheadThe Fahr D 135 has 60% more forward gears (3 gears) than the Deutz D 25 (both forward gears, as stated by the source). |
| Which offers a creeper range? | — | — | No figureNo call on a creeper range: not stated for the D 25 and the D 135. |
| Which is faster on the road? | 20 km/h (12.4 mph)Traktorenlexikon, “Deutz D 25” | 19 km/h (11.8 mph)Traktorenlexikon, “Fahr D 135” | EvenEven on top speed (both top speed forward, as stated by the source): the difference is under the 10% threshold, too small to call. |
| Which offers more PTO speeds? | 257/540 rpmTraktorenlexikon, “Deutz D 25 S” | 525 rpmTraktorenlexikon, “Fahr D 135” | No figureNo call on PTO speeds: no standard PTO speed stated for the D 135. |
| Which PTO runs independently of the ground drive? | dependent (stops with the clutch)Traktorenlexikon, “Deutz D 25” | dependent (stops with the clutch)Traktorenlexikon, “Fahr D 135” | EvenEven on PTO independence: every PTO is dependent. |
| Which drives on both axles? | 2WDTraktorenlexikon, “Deutz D 25”; Traktorenlexikon, “Deutz D 25 S” | 2WDTraktorenlexikon, “Fahr D 135” | EvenEven on drive: all two-wheel drive. |
| Which is newer, and what about parts? | 1959 | 1958–1959 | EvenSame era: production began within 5 years of each other. We hold no parts-availability data, so there is no call on parts. |
What does this mean in plain words?
- The Deutz D 25 is 14% heavier (165 kg / 364 lb) than the Fahr D 135 (both unladen weight, as stated by the source).
- The Deutz D 25 has 33% higher maximum permissible mass (540 kg / 1,190 lb) than the Fahr D 135 (both maximum permissible mass, as stated by the source).
- The Fahr D 135 has 60% more forward gears (3 gears) than the Deutz D 25 (both forward gears, as stated by the source).
- 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 top speed (both top speed forward, as stated by the source): the difference is under the 10% threshold, too small to call.
- Even on PTO independence: every PTO is dependent.
- Even on drive: all two-wheel drive.
- Same era: production began within 5 years of each other. We hold no parts-availability data, so there is no call on parts.
- No figure on record for every machine, so no call on: fuel efficiency at the shaft, drawbar power, hydraulic flow, three-point lift, a creeper range and PTO speeds.
← Every figure for both machines, side by side, with sources