ALLIS-CHALMERS One-Seventy vs SOMECA SOM-511

13 material differences

Tractor one

1967–1973

No measured PTO figure

Tractor two

1964–1965

No measured PTO figure

Which should you choose?

Read our verdict on the One-Seventy and the SOM-511 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

13 material differences · 2 fields identical or within 5%, which is not counted as material

ALLIS-CHALMERS One-Seventy and SOMECA SOM-511, field by field
Field	One-Seventy	SOM-511	Gap
Engine
Engine power, claimed claimed	54.3 hp	54.3 hp	—
Engine declared	Perkins 4236	O.M.-FIAT CO 2D-45	differs
Displacement declared	3.86 L	4.40 L	+14% SOM-511
Transmission
Top speed declared	15.5 mph · 25 km/h	13.7 mph · 22 km/h	+14% One-Seventy
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	4.0 gpm · 15.2 L/min	+62% One-Seventy
Pressure declared	—	2,988 psi · 206 bar	—
Three-point lift at ends declared	—	3,285 lb · 1,490 kg	—
Rear PTO speeds declared	540 rpm	540 rpm	—
Weight & dimensions
Unladen weight declared	5,721–5,950 lb · 2,595–2,699 kg	5,567 lb · 2,525 kg	differs
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	133.9 in · 3,400 mm	+12% 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	72.0 in · 1,829 mm	+7% SOM-511
Ground clearance declared	20.5 in · 521 mm	16.1 in · 410 mm	+27% One-Seventy
Turning radius, braked declared	10.2 ft · 3.10 m	10.8 ft · 3.30 m	+6% SOM-511
Fuel tank declared	74.0 qt · 70.0 L	59.2 qt · 56.0 L	+25% One-Seventy

Source

Source