11 material differences · fewer than 12
Tractor oneInternational Harvester 5441968–1973No measured PTO figureTractor twoSOMECA 550 (DT)1968–1971No measured PTO figure
Which should you choose?
Read our verdict on the 544 and the 550 (DT) → 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 · 3 fields identical or within 5%, which is not counted as material
| Field | 544 | 550 (DT) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 51.2 hp | 51.2 hp | — |
| Engine declared | INTERNATIONAL HARVESTER C-200 | O.M.-FIAT 854.000 or A 1.000 | differs |
| Displacement declared | — | 3.12 L | — |
| Maximum torque declared | 171 lb·ft · 232 N·m | 137 lb·ft · 186 N·m | +25% 544 |
| Transmission | |||
| Top speed declared | 18.6 mph · 30 km/h | 14.9 mph · 24 km/h | +25% 544 |
| Clutch declared | Pedal operated dry single plate clutch type 11 inches | pedal-operated dry Feredo two-stage double clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 12.0 gpm · 45.4 L/min | 5.8 gpm · 21.8 L/min | +108% 544 |
| Pressure declared | — | 2,843 psi · 196 bar | — |
| Rear PTO speeds declared | 540/1000 rpm | 540 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 4,978 lb · 2,258 kg | 4,542 lb · 2,060 kg | +10% 544 |
| Wheelbase declared | 73.0 in · 1,854 mm | 81.5 in · 2,070 mm | +12% 550 (DT) |
| Length declared | 138.0 in · 3,505 mm | 135.0 in · 3,430 mm | — |
| Width declared | 71.0 in · 1,803 mm | 66.5–95.3 in · 1,690–2,420 mm | differs |
| Ground clearance declared | 11.0 in · 279 mm | 16.5 in · 420 mm | +51% 550 (DT) |
| Turning radius, braked declared | 10.5 ft · 3.20 m | 10.3 ft · 3.13 m | — |
| Fuel tank declared | 132.1 qt · 125.0 L | 57.1 qt · 54.0 L | +131% 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.
International Harvester 544 sources
- Source: Traktorenlexikon, “IHC 544”
SOMECA 550 (DT) sources
- Source: Traktorenlexikon, “Someca 550”