10 material differences · fewer than 12
Tractor oneFordson Power Major1958–1960No measured PTO figureTractor twoSOMECA 615 (DT)1965–1968No measured PTO figure
Which should you choose?
We will not advise between these two machines, because they were not built in overlapping years (1958–1960; 1965–1968). 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
10 material differences · 3 fields identical or within 5%, which is not counted as material
| Field | Power Major | 615 (DT) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 51.8 hp | 51.2 hp | — |
| Engine declared | FORD Mk-3 | O.M.-FIAT CO 2D-45 | differs |
| Displacement declared | 3.61 L | 4.40 L | +22% 615 (DT) |
| Maximum torque declared | 178 lb·ft · 241 N·m | — | — |
| Transmission | |||
| Top speed declared | 13.7 mph · 22 km/h | 13.7 mph · 22 km/h | — |
| Clutch declared | pedal-operated dry single-disc clutch | Pedal-operated two-stage dry FERODO double clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | — | 5.5 gpm · 20.8 L/min | — |
| Pressure declared | — | 2,988 psi · 206 bar | — |
| Rear PTO speeds declared | 542 rpm | 540 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 5,205 lb · 2,361 kg | 5,820 lb · 2,640 kg | +12% 615 (DT) |
| Maximum permissible mass declared | 8,818 lb · 4,000 kg | — | — |
| Wheelbase declared | 80.0 in · 2,032 mm | 83.9 in · 2,130 mm | — |
| Length declared | 130.5 in · 3,315 mm | 144.5 in · 3,670 mm | +11% 615 (DT) |
| Width declared | 65.0–85.0 in · 1,651–2,159 mm | 70.5–93.9 in · 1,790–2,385 mm | differs |
| Ground clearance declared | 19.5 in · 495 mm | 15.4 in · 390 mm | +27% Power Major |
| Turning radius, braked declared | 11.6 ft · 3.55 m | 10.8 ft · 3.30 m | +8% Power Major |
| Fuel tank declared | 72.1 qt · 68.25 L | 88.8 qt · 84.0 L | +23% 615 (DT) |
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.
Fordson Power Major sources
- Source: Traktorenlexikon, “Fordson Power Major”
SOMECA 615 (DT) sources
- Source: Traktorenlexikon, “Someca 615”
- Source: Traktorenlexikon, “Someca SOM 40 Super”