ALLIS-CHALMERS One-Seventy vs SOMECA SOM-55
11 material differences · fewer than 12
Which should you choose?
We will not advise between these two machines, because they were not built in overlapping years (1967–1973; 1961–1963). 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
11 material differences · 4 fields identical or within 5%, which is not counted as material
| Field | One-Seventy | SOM-55 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 54.3 hp | 54.3 hp | — |
| Engine declared | Perkins 4236 | O.M.-FIAT CO 1D/55 | differs |
| Displacement declared | 3.86 L | 4.16 L | +8% SOM-55 |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 14.9 mph · 24 km/h | — |
| Clutch declared | Pedal or hand operated dry single plate clutch | pedal operated two stage dry FERODO double clutch | differs |
| Hydraulics & hitch | |||
| Hydraulic centre declared | Open centre | — | — |
| Pump flow declared | 6.5 gpm · 24.6 L/min | 5.7 gpm · 21.5 L/min | +14% One-Seventy |
| Pressure declared | — | 2,988 psi · 206 bar | — |
| Three-point lift at ends declared | — | 2,976 lb · 1,350 kg | — |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 5,721–5,950 lb · 2,595–2,699 kg | 5,776 lb · 2,620 kg | — |
| Wheelbase declared | 95.5 in · 2,426 mm | 80.0 in · 2,032 mm | +19% One-Seventy |
| Length declared | 150.2 in · 3,814 mm | 140.9 in · 3,580 mm | +7% One-Seventy |
| Width declared | 76.5 in · 1,943 mm | 68.7 in · 1,745 mm | +11% One-Seventy |
| Height declared | 67.4 in · 1,712 mm | 72.5 in · 1,841 mm | +8% SOM-55 |
| Ground clearance declared | 20.5 in · 521 mm | 15.4 in · 390 mm | +34% One-Seventy |
| Turning radius, braked declared | 10.2 ft · 3.10 m | 10.8 ft · 3.30 m | +6% SOM-55 |
| Fuel tank declared | 74.0 qt · 70.0 L | 93.0 qt · 88.0 L | +26% SOM-55 |
ALLIS-CHALMERS One-Seventy sources
Source
- Source: Traktorenlexikon, “Allis-Chalmers 170”
- Source: Traktorenlexikon, “Lindner BF 650 SN/SA”
SOMECA SOM-55 sources
Source
- Source: Traktorenlexikon, “Someca SOM 55”