Fiat 56-66S/56-66 DTS vs UTB U-553 DT

14 material differences

Tractor one

1992–1995

No measured PTO figure

Tractor two

1988–1991

No measured PTO figure

Which should you choose?

Read our verdict on the 56-66S/56-66 DTS and the U-553 DT → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

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

Fiat 56-66S/56-66 DTS and UTB U-553 DT, field by field
Field	56-66S/56-66 DTS	U-553 DT	Gap
Engine
Engine power, claimed claimed	54.3 hp	54.3 hp	—
Engine declared	FIAT-IVECO 8035.06	UTB D-121.000	differs
Displacement declared	2.71 L	3.12 L	+15% U-553 DT
Maximum torque declared	130 lb·ft · 176 N·m	—	—
Transmission
Top speed declared	18.6–24.9 mph · 30–40 km/h	15.5 mph · 25 km/h	differs
Clutch declared	Dry O.M.G. or LuK double clutch	Dry UTB double clutch	differs
Hydraulics & hitch
Hydraulic centre declared	Open centre	—	—
Pump flow declared	9.1 gpm · 34.5 L/min	9.0 gpm · 34.0 L/min	—
Pressure declared	3,118 psi · 215 bar	2,031 psi · 140 bar	+54% 56-66S/56-66 DTS
Three-point lift at ends declared	4,685 lb · 2,125 kg	5,776 lb · 2,620 kg	+23% U-553 DT
Rear PTO speeds declared	540 rpm	540/1000 rpm	differs
Weight & dimensions
Unladen weight declared	4,685 lb · 2,125 kg	6,889 lb · 3,125 kg	+47% U-553 DT
Maximum permissible mass declared	8,488 lb · 3,850 kg	—	—
Wheelbase declared	78.7 in · 1,999 mm	89.4 in · 2,270 mm	+14% U-553 DT
Length declared	127.6 in · 3,241 mm	148.4 in · 3,770 mm	+16% U-553 DT
Width declared	60.6 in · 1,540 mm	72.4 in · 1,839 mm	+19% U-553 DT
Height declared	88.4 in · 2,245 mm	98.4 in · 2,500 mm	+11% U-553 DT
Ground clearance declared	17.9 in · 455 mm	12.6 in · 320 mm	+42% 56-66S/56-66 DTS
Fuel tank declared	77.1 qt · 73.0 L	65.5 qt · 62.0 L	+18% 56-66S/56-66 DTS

Source

Source