9 material differences · fewer than 12
Tractor oneNuffield 4/25 (425)1968–1969No measured PTO figureTractor twoSOMECA SOM-25 D/E1960–1963No measured PTO figure
Which should you choose?
Read our verdict on the 4/25 (425) and the SOM-25 D/E → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
9 material differences · 5 fields identical or within 5%, which is not counted as material
| Field | 4/25 (425) | SOM-25 D/E | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 24.9 hp | 24.7 hp | — |
| Engine declared | BMC B 15 T | FIAT 614.010 | differs |
| Displacement declared | — | 1.14 L | — |
| Maximum torque declared | 51 lb·ft · 69 N·m | 46 lb·ft · 63 N·m | +10% 4/25 (425) |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 13.7 mph · 22 km/h | +14% 4/25 (425) |
| Clutch declared | Pedal-operated dry BORG & BECK single-plate clutch | Pedal-operated dry FERODO single-plate clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 3.8 gpm · 14.5 L/min | 2.0 gpm · 7.5 L/min | +93% 4/25 (425) |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 2,220–2,328 lb · 1,007–1,056 kg | 2,535 lb · 1,150 kg | differs |
| Wheelbase declared | 67.0 in · 1,702 mm | 66.9 in · 1,700 mm | — |
| Length declared | 109.4 in · 2,780 mm | 105.5 in · 2,680 mm | — |
| Width declared | 60.5 in · 1,537 mm | 58.1–78.0 in · 1,475–1,980 mm | differs |
| Ground clearance declared | 12.8 in · 324 mm | 20.5 in · 520 mm | +60% SOM-25 D/E |
| Turning radius, braked declared | 9.4 ft · 2.87 m | 9.0 ft · 2.75 m | — |
| Fuel tank declared | 33.6 qt · 31.8 L | 25.4 qt · 24.0 L | +33% 4/25 (425) |
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.
Nuffield 4/25 (425) sources
- Source: Traktorenlexikon, “Nuffield 4/25 (1968-1969)”
SOMECA SOM-25 D/E sources
- Source: Traktorenlexikon, “Someca SOM 25 D/E”
- Source: Traktorenlexikon, “Fiat 215/215 DT”