Fiat 55-66 (DT) vs SOMECA 540 (TD)

10 material differences · fewer than 12

Tractor one

1985–1992

No measured PTO figure

Tractor two

1973–1982

No measured PTO figure

Which should you choose?

Read our verdict on the 55-66 (DT) and the 540 (TD) → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

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

Fiat 55-66 (DT) and SOMECA 540 (TD), field by field
Field	55-66 (DT)	540 (TD)	Gap
Engine
Engine power, claimed claimed	54.3 hp	53.2 hp	—
Engine declared	FIAT-IVECO 8035.06.206 or 306	FIAT-IVECO 8035.02.202/304	differs
Displacement declared	2.71 L	2.59 L	—
Maximum torque declared	128 lb·ft · 174 N·m	124 lb·ft · 168 N·m	—
Transmission
Top speed declared	15.5–24.9 mph · 25–40 km/h	15.5 mph · 25 km/h	differs
Clutch declared	—	dry LuK double clutch	—
Hydraulics & hitch
Pump flow declared	—	5.8 gpm · 21.8 L/min	—
Pressure declared	3,046 psi · 210 bar	2,843 psi · 196 bar	+7% 55-66 (DT)
Three-point lift at ends declared	—	3,571 lb · 1,620 kg	—
Rear PTO speeds declared	540/1000 rpm	540 rpm	differs
Weight & dimensions
Unladen weight declared	4,971 lb · 2,255 kg	4,112 lb · 1,865 kg	+21% 55-66 (DT)
Maximum permissible mass declared	9,259 lb · 4,200 kg	—	—
Wheelbase declared	85.6 in · 2,175 mm	75.6 in · 1,920 mm	+13% 55-66 (DT)
Length declared	125.4 in · 3,185 mm	119.9 in · 3,045 mm	—
Width declared	75.2 in · 1,910 mm	65.4 in · 1,660 mm	+15% 55-66 (DT)
Height declared	90.7 in · 2,305 mm	93.3 in · 2,370 mm	—
Ground clearance declared	19.5 in · 495 mm	18.1 in · 459 mm	+8% 55-66 (DT)
Turning radius, braked declared	12.0 ft · 3.65 m	9.7 ft · 2.95 m	+24% 55-66 (DT)
Fuel tank declared	77.1 qt · 73.0 L	57.1 qt · 54.0 L	+35% 55-66 (DT)

Source

Source