6 material differences · fewer than 12
Tractor oneOLIVER 1255 (4 WD)1969–1971No measured PTO figureTractor twoSOMECA 450-N (DT)1970–1977No measured PTO figure
Which should you choose?
We will not advise between these two machines, because their power is identical, with the same weight or the same engine, which usually means one machine sold under two names; any difference below comes from how each source describes it. The figures below are side by side so you can judge them yourself; each says whether it was measured, claimed or declared by its source.
Field by field
6 material differences · 9 fields identical or within 5%, which is not counted as material
| Field | 1255 (4 WD) | 450-N (DT) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 41.4 hp | 42.4 hp | — |
| Engine declared | FIAT 853-A | FIAT-IVECO 8035.01.300 | differs |
| Displacement declared | 2.34 L | 2.34 L | — |
| Maximum torque declared | 105 lb·ft · 143 N·m | 103 lb·ft · 140 N·m | — |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 16.8 mph · 27 km/h | +8% 450-N (DT) |
| Clutch declared | Pedal-operated dry LuK single-disc clutch | Pedal-operated two-stage dry FERODO double clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 5.8 gpm · 21.8 L/min | 5.8 gpm · 21.8 L/min | — |
| Pressure declared | — | 2,843 psi · 196 bar | — |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 4,123 lb · 1,870 kg | 3,748 lb · 1,700 kg | +10% 1255 (4 WD) |
| Wheelbase declared | 75.7 in · 1,922 mm | 75.6 in · 1,920 mm | — |
| Length declared | 115.0 in · 2,921 mm | 126.0 in · 3,200 mm | +10% 450-N (DT) |
| Width declared | 62.9–87.3 in · 1,598–2,218 mm | 62.4–88.2 in · 1,585–2,240 mm | — |
| Ground clearance declared | 18.2 in · 462 mm | 14.6 in · 370 mm | +25% 1255 (4 WD) |
| Turning radius, braked declared | 9.4 ft · 2.86 m | 9.7 ft · 2.95 m | — |
| Fuel tank declared | 57.1 qt · 54.0 L | 57.1 qt · 54.0 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.
OLIVER 1255 (4 WD) sources
- Source: Traktorenlexikon, “Oliver 1255”
- Source: Traktorenlexikon, “Oliver 1250-A”
SOMECA 450-N (DT) sources
- Source: Traktorenlexikon, “Someca 450 N”