13 material differences

Tractor oneFiat 55-90 (DT)1984–1992No measured PTO figureTractor twoRenault 551-4 (S)1976–1986No measured PTO figure

Which should you choose?

We will not advise between these two machines, because the drive differs (Two-wheel or four-wheel drive; 4WD). 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

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

Fiat 55-90 (DT) and Renault 551-4 (S), field by field
Field	55-90 (DT)	551-4 (S)	Gap
Engine
Engine power, claimed claimed	54.3 hp	54.3 hp	—
Engine declared	FIAT-IVECO 8035.06.200 or (300)	MWM D 226-3	differs
Displacement declared	2.71 L	3.12 L	+15% 551-4 (S)
Maximum torque declared	129 lb·ft · 175 N·m	142 lb·ft · 192 N·m	+10% 551-4 (S)
Transmission
Top speed declared	18.6–24.9 mph · 30–40 km/h	15.5 mph · 25 km/h	differs
Clutch declared	Dry Valeo, O.M.G. or LuK double clutch	Dry LuK double clutch	differs
Hydraulics & hitch
Pump flow declared	—	7.2 gpm · 27.2 L/min	—
Rear PTO speeds declared	540/1000 rpm	540 rpm	differs
Weight & dimensions
Unladen weight declared	6,129 lb · 2,780 kg	6,493 lb · 2,945 kg	+6% 551-4 (S)
Wheelbase declared	87.7 in · 2,227 mm	83.0 in · 2,107 mm	+6% 55-90 (DT)
Length declared	147.0 in · 3,733 mm	149.8 in · 3,806 mm	—
Width declared	67.3–90.9 in · 1,710–2,310 mm	73.2–89.0 in · 1,860–2,260 mm	differs
Height, over the cab declared	98.8 in · 2,510 mm	92.5 in · 2,350 mm	+7% 55-90 (DT)
Ground clearance declared	17.5 in · 445 mm	14.2 in · 360 mm	+24% 55-90 (DT)
Turning radius, braked declared	11.4 ft · 3.46 m	15.3 ft · 4.65 m	+34% 551-4 (S)
Fuel tank declared	98.3 qt · 93.0 L	68.7 qt · 65.0 L	+43% 55-90 (DT)

Fiat 55-90 (DT) sources

Source

Source: Traktorenlexikon, “Fiatagri 55-90/55-90 DT”

Renault 551-4 (S) sources