Fiat 580 (DT) or International Harvester 584?
Which should you choose?
On performance, every comparable figure that differs favours the International Harvester 584: hydraulic flow. It is also ahead on PTO speeds.
- The International Harvester 584 suits PTO-driven implements (mowers, balers, pumps) better on this data: offers 1000 rpm.
- The International Harvester 584 suits loader and hydraulic implement work better on this data: 50% (12.4 L/min / 3.3 gpm) more hydraulic flow.
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 | 580 (DT) | 584 | Call |
|---|---|---|---|
| Which puts more power through the PTO shaft? | 36.0 kW (48.3 hp)Traktorenlexikon, “Fiat 580/580 DT” | 36.2 kW (48.5 hp)Traktorenlexikon, “IHC 584” | 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 580 (DT) and the 584. |
| Which pulls harder at the drawbar? | — | — | No figureNo call on drawbar power: no figure on record for the 580 (DT) and the 584. |
| Which pumps more oil for implements? | 24.6 L/min (6.5 gpm)Traktorenlexikon, “Fiat 580/580 DT” | 37.0 L/min (9.8 gpm)Traktorenlexikon, “IHC 584” | AheadThe International Harvester 584 has 50% more hydraulic flow (12.4 L/min / 3.3 gpm) than the Fiat 580 (DT) (both pump flow, as stated by the source). |
| Which lifts more on the three-point hitch? | — | 2,000 kg (4,409 lb)Traktorenlexikon, “IHC 584” | No figureNo call on three-point lift: no figure on record for the 580 (DT). |
| Which is heavier, for traction? | 2,335 kg (5,148 lb)Traktorenlexikon, “Fiat 580/580 DT” | 2,270 kg (5,004 lb)Traktorenlexikon, “IHC 584” | 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? | — | — | No figureNo call on maximum permissible mass: no figure on record for the 580 (DT) and the 584. |
| Which has the wider choice of gears? | 8 to 12Traktorenlexikon, “Fiat 580/580 DT” | 8 to 16Traktorenlexikon, “IHC 584” | 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 580 (DT) and the 584. |
| Which is faster on the road? | 25 km/h (15.5 mph) to 30 km/h (18.6 mph)Traktorenlexikon, “Fiat 580/580 DT” | 25 km/h (15.5 mph)Traktorenlexikon, “IHC 584” | 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? | 540 rpmTraktorenlexikon, “Fiat 580/580 DT” | 540/1000 rpmTraktorenlexikon, “IHC 584” | AheadThe International Harvester 584 offers 1000 rpm at the PTO, which the Fiat 580 (DT) does not (as stated by the sources). |
| Which PTO runs independently of the ground drive? | independentTraktorenlexikon, “Fiat 580/580 DT” | — | No figureNo call on PTO independence: not stated for the 584. |
| Which drives on both axles? | Two-wheel or four-wheel driveTraktorenlexikon, “Fiat 580/580 DT” | 2WD / 4WDTraktorenlexikon, “IHC 584” | EvenEven on drive: every machine is available with four-wheel drive. |
| Which is newer, and what about parts? | 1978–1984 | 1977–1981 | 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 International Harvester 584 has 50% more hydraulic flow (12.4 L/min / 3.3 gpm) than the Fiat 580 (DT) (both pump flow, as stated by the source).
- The International Harvester 584 offers 1000 rpm at the PTO, which the Fiat 580 (DT) does not (as stated by the sources).
- 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: every machine is available with four-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, three-point lift, maximum permissible mass, a creeper range and PTO independence.
← Every figure for both machines, side by side, with sources