6 material differences · fewer than 12
Tractor oneFiat 850 Special (DT)1972–1974No measured PTO figureTractor twoSOMECA 900 (TD)1968–1971No measured PTO figure
Which should you choose?
We will not advise between these two machines, because they were not built in overlapping years (1972–1974; 1968–1971). 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 | 850 Special (DT) | 900 (TD) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 88.8 hp | 88.8 hp | — |
| Engine declared | O.M.-FIAT CO 3/80 Var.6 | FIAT 8065.01.000 | differs |
| Displacement declared | 4.94 L | 4.68 L | +6% 850 Special (DT) |
| Maximum torque declared | 236 lb·ft · 320 N·m | 203 lb·ft · 275 N·m | +16% 850 Special (DT) |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 15.5 mph · 25 km/h | — |
| Clutch declared | Dry FERODO double clutch | — | — |
| Hydraulics & hitch | |||
| Pump flow declared | 10.0 gpm · 38.0 L/min | 11.5 gpm · 43.5 L/min | +14% 900 (TD) |
| Pressure declared | 2,901 psi · 200 bar | 2,843 psi · 196 bar | — |
| Rear PTO speeds declared | 540/1000 rpm | 540/1000 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 7,496 lb · 3,400 kg | 7,363 lb · 3,340 kg | — |
| Wheelbase declared | 93.0 in · 2,362 mm | 97.6 in · 2,480 mm | — |
| Length declared | 159.5 in · 4,052 mm | 164.2 in · 4,170 mm | — |
| Width declared | 75.8–99.4 in · 1,925–2,525 mm | 78.7–99.7 in · 1,998–2,532 mm | — |
| Ground clearance declared | 21.5 in · 545 mm | 17.4 in · 442 mm | +23% 850 Special (DT) |
| Turning radius, braked declared | 11.9 ft · 3.64 m | 12.5 ft · 3.81 m | — |
| Fuel tank declared | 89.8 qt · 85.0 L | 122.6 qt · 116.0 L | +36% 900 (TD) |
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 850 Special (DT) sources
- Source: Traktorenlexikon, “Fiat 850 Spezial (DT)”
SOMECA 900 (TD) sources
- Source: Traktorenlexikon, “Someca 900”