11 material differences · fewer than 12
Tractor oneFiat 580 (DT)1978–1984No measured PTO figureTractor twoInternational Harvester 5841977–1981No measured PTO figure
Which should you choose?
Read our verdict on the 580 (DT) and the 584 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
11 material differences · 4 fields identical or within 5%, which is not counted as material
| Field | 580 (DT) | 584 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 57.3 hp | 59.1 hp | — |
| Engine declared | FIAT-IVECO 8035.04.370 (377) | INTERNATIONAL-HARVESTER D-206 | differs |
| Displacement declared | 2.75 L | 3.38 L | +23% 584 |
| Maximum torque declared | — | 129 lb·ft · 175 N·m | — |
| Transmission | |||
| Top speed declared | 15.5–18.6 mph · 25–30 km/h | 15.5 mph · 25 km/h | differs |
| Clutch declared | Dry Ferodo or LuK double clutch with separate PTO actuation | Pedal operated dry Laycock single disc clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 6.5 gpm · 24.6 L/min | 9.8 gpm · 37.0 L/min | +50% 584 |
| Pressure declared | 3,191–3,336 psi · 220–230 bar | 2,698 psi · 186 bar | differs |
| Rear PTO speeds declared | 540 rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 5,148 lb · 2,335 kg | 5,004 lb · 2,270 kg | — |
| Wheelbase declared | 84.6 in · 2,150 mm | 84.5 in · 2,146 mm | — |
| Length declared | 129.8 in · 3,298 mm | 143.7 in · 3,650 mm | +11% 584 |
| Width declared | 76.0 in · 1,930 mm | 69.3 in · 1,760 mm | +10% 580 (DT) |
| Ground clearance declared | 19.0 in · 483 mm | 14.1 in · 358 mm | +35% 580 (DT) |
| Turning radius, braked declared | 9.7 ft · 2.95 m | 10.7 ft · 3.25 m | +10% 584 |
| Fuel tank declared | 84.5 qt · 80.0 L | 81.4 qt · 77.0 L | — |
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.
Fiat 580 (DT) sources
- Source: Traktorenlexikon, “Fiat 580/580 DT”
International Harvester 584 sources
- Source: Traktorenlexikon, “IHC 584”
- Source: Traktorenlexikon, “McCormick 624 (A)”