10 material differences · fewer than 12

Tractor oneFiat 615 (DT)1965–1968No measured PTO figureTractor twoInternational Harvester 6561965–1972No measured PTO figure

Which should you choose?

Read our verdict on the 615 (DT) and the 656 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

10 material differences · 3 fields identical or within 5%, which is not counted as material

Fiat 615 (DT) and International Harvester 656, field by field
Field	615 (DT)	656	Gap
Engine
Engine power, claimed claimed	64.1 hp	64.1 hp	—
Engine declared	O.M.-FIAT CO 2 D/60 Var.10 or Var.12	INTERNATIONAL HARVESTER C-263	differs
Displacement declared	4.40 L	—	—
Maximum torque declared	188 lb·ft · 255 N·m	—	—
Transmission
Top speed declared	14.9 mph · 24 km/h	15.5–21.1 mph · 25–34 km/h	differs
Clutch declared	pedal operated two stage dry FERODO double clutch	Pedal operated dry single plate clutch	differs
Hydraulics & hitch
Pump flow declared	7.0 gpm · 26.5 L/min	12.0 gpm · 45.5 L/min	+72% 656
Pressure declared	2,988 psi · 206 bar	—	—
Rear PTO speeds declared	540 rpm	540/1000 rpm	differs
Weight & dimensions
Unladen weight declared	5,997 lb · 2,720 kg	5,798 lb · 2,630 kg	—
Wheelbase declared	85.4 in · 2,170 mm	80.0 in · 2,032 mm	+7% 615 (DT)
Length declared	140.9 in · 3,580 mm	152.0 in · 3,861 mm	+8% 656
Width declared	71.7–98.0 in · 1,820–2,490 mm	87.0 in · 2,210 mm	differs
Height, over the steering wheel declared	66.5 in · 1,690 mm	77.0 in · 1,956 mm	+16% 656
Ground clearance declared	18.5 in · 470 mm	19.0 in · 483 mm	—
Turning radius, braked declared	12.0 ft · 3.65 m	—	—
Fuel tank declared	88.8 qt · 84.0 L	132.1 qt · 125.0 L	+49% 656

Source

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