Fahr D 400 B or International Harvester WD-9?
Which should you choose?
On performance, no comparable figure differs by more than its threshold: on this data the machines are level.
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 400 B | WD-9 | Call |
|---|---|---|---|
| Which puts more power through the PTO shaft? | 31.6 kW (42 hp)Traktorenlexikon, “Fahr D 400 B” | 34.6 kW (46.5 hp)Traktorenlexikon, “McCormick WD-9” | 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 400 B and the WD-9. |
| Which pulls harder at the drawbar? | — | — | No figureNo call on drawbar power: no figure on record for the D 400 B and the WD-9. |
| Which pumps more oil for implements? | 18.5 L/min (4.9 gpm)Traktorenlexikon, “Fahr D 400 B” | — | No figureNo call on hydraulic flow: no figure on record for the WD-9. |
| Which lifts more on the three-point hitch? | — | — | No figureNo call on three-point lift: no figure on record for the D 400 B and the WD-9. |
| Which is heavier, for traction? | 2,820 kg (6,217 lb)Traktorenlexikon, “Fahr D 400 B” | 2,654 kg (5,851 lb)Traktorenlexikon, “McCormick WD-9” | 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? | 4,000 kg (8,818 lb)Traktorenlexikon, “Fahr D 400 B” | — | No figureNo call on maximum permissible mass: no figure on record for the WD-9. |
| Which has the wider choice of gears? | 5 to 7Traktorenlexikon, “Fahr D 400 B” | 5Traktorenlexikon, “McCormick WD-9” | EvenEven on forward gears (both forward gears, as stated by the source): the figures vary by configuration and the ranges overlap. |
| Which offers a creeper range? | — | — | No figureNo call on a creeper range: not stated for the D 400 B and the WD-9. |
| Which is faster on the road? | 20 km/h (12.4 mph) to 30 km/h (18.6 mph)Traktorenlexikon, “Fahr D 400 B” | 26 km/h (16.2 mph)Traktorenlexikon, “McCormick WD-9” | EvenEven on top speed (both top speed forward, as stated by the source): the figures vary by configuration and the ranges overlap. |
| Which offers more PTO speeds? | 588 rpmTraktorenlexikon, “Fahr D 400 B” | 538 rpmTraktorenlexikon, “McCormick WD-9” | No figureNo call on PTO speeds: no standard PTO speed stated for the D 400 B and the WD-9. |
| Which PTO runs independently of the ground drive? | dependent (stops with the clutch)Traktorenlexikon, “Fahr D 400 B” | — | No figureNo call on PTO independence: not stated for the WD-9. |
| Which drives on both axles? | 2WDTraktorenlexikon, “Fahr D 400 B” | 2WDTraktorenlexikon, “McCormick WD-9” | EvenEven on drive: all two-wheel drive. |
| Which is newer, and what about parts? | 1955–1961 | 1940–1954 | Ahead (a fact, not an advantage)The Fahr D 400 B 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 Fahr D 400 B 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 forward gears (both forward gears, as stated by the source): the figures vary by configuration and the ranges overlap.
- Even on top speed (both top speed forward, as stated by the source): the figures vary by configuration and the ranges overlap.
- Even on drive: all two-wheel drive.
- No figure on record for every machine, so no call on: fuel efficiency at the shaft, drawbar power, hydraulic flow, three-point lift, maximum permissible mass, a creeper range, PTO speeds and PTO independence.
← Every figure for both machines, side by side, with sources