10 material differences · fewer than 12
Tractor oneFiat 45-Rfrom 1952No measured PTO figureTractor twoSOMECA SOM-401957–1959No measured PTO figure
Which should you choose?
Read our verdict on the 45-R and the SOM-40 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
10 material differences · 5 fields identical or within 5%, which is not counted as material
| Field | 45-R | SOM-40 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 44.4 hp | 44.4 hp | — |
| Engine declared | O.M.-FIAT CO 1D-45/Var. 10 | O.M.-FIAT COID-45 | differs |
| Displacement declared | 4.16 L | 4.16 L | — |
| Maximum torque declared | 167 lb·ft · 226 N·m | — | — |
| Transmission | |||
| Top speed declared | 9.9 mph · 16 km/h | 13.0 mph · 21 km/h | +31% SOM-40 |
| Clutch declared | Pedal-operated dry single-plate clutch | Pedal operated two stage dry double clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 5.3 gpm · 20.0 L/min | 4.0 gpm · 15.0 L/min | +33% 45-R |
| Three-point lift, at the coupling points declared | 2,094 lb · 950 kg | 2,425 lb · 1,100 kg | +16% SOM-40 |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 5,071 lb · 2,300 kg | 5,115 lb · 2,320 kg | — |
| Wheelbase declared | 74.8 in · 1,900 mm | 79.9 in · 2,030 mm | +7% SOM-40 |
| Length declared | 116.3 in · 2,955 mm | 132.5 in · 3,365 mm | +14% SOM-40 |
| Width declared | 60.4–91.9 in · 1,535–2,335 mm | 68.7–95.1 in · 1,745–2,415 mm | differs |
| Ground clearance declared | 15.7 in · 400 mm | 14.3 in · 364 mm | +10% 45-R |
| Turning radius, braked declared | 10.8 ft · 3.30 m | 10.8 ft · 3.30 m | — |
| Fuel tank declared | 53.9 qt · 51.0 L | 59.2 qt · 56.0 L | +10% SOM-40 |
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 45-R sources
- Source: Traktorenlexikon, “Fiat 45 R”
SOMECA SOM-40 sources
- Source: Traktorenlexikon, “Someca SOM 40”