12 material differences
Tractor oneFiat 550 (DT)1968–1978No measured PTO figureTractor twoInternational Harvester Farmall 5441968–1973No measured PTO figure
Which should you choose?
Read our verdict on the 550 (DT) and the Farmall 544 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
12 material differences · 2 fields identical or within 5%, which is not counted as material
| Field | 550 (DT) | Farmall 544 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 51.2 hp | 51.2 hp | — |
| Engine declared | FIAT-IVECO 8045 | INTERNATIONAL HARVESTER C-200 | differs |
| Displacement declared | 3.12 L | — | — |
| Maximum torque declared | 137 lb·ft · 186 N·m | 171 lb·ft · 232 N·m | +25% Farmall 544 |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 18.6 mph · 30 km/h | +20% Farmall 544 |
| Clutch declared | Dry FEREDO double clutch with separate PTO control | Pedal-operated dry single-plate clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 5.8 gpm · 21.8 L/min | 12.0 gpm · 45.4 L/min | +108% Farmall 544 |
| Pressure declared | 2,843 psi · 196 bar | — | — |
| Rear PTO speeds declared | 540 rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 4,542 lb · 2,060 kg | 6,098 lb · 2,766 kg | +34% Farmall 544 |
| Wheelbase declared | 81.5 in · 2,070 mm | 90.5 in · 2,299 mm | +11% Farmall 544 |
| Length declared | 135.0 in · 3,430 mm | 138.0 in · 3,505 mm | — |
| Width declared | 66.5–95.3 in · 1,690–2,420 mm | 71.0 in · 1,803 mm | differs |
| Ground clearance declared | 16.5 in · 420 mm | 13.0 in · 330 mm | +27% 550 (DT) |
| Turning radius, braked declared | 10.3 ft · 3.13 m | 8.7 ft · 2.64 m | +19% 550 (DT) |
| Fuel tank declared | 57.1 qt · 54.0 L | 132.1 qt · 125.0 L | +131% Farmall 544 |
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 550 (DT) sources
Source
- Source: Traktorenlexikon, “Fiat 550/550 DT”
International Harvester Farmall 544 sources
Source
- Source: Traktorenlexikon, “Farmall Farmall 544”
- Source: Traktorenlexikon, “IHC 544”