10 material differences · fewer than 12
Tractor oneFiat 55-86 F (F/DT)1992–2000No measured PTO figureTractor twoFiat 56-66S/56-66 DTS1992–1995No measured PTO figure
Which should you choose?
Read our verdict on the 55-86 F (F/DT) and the 56-66S/56-66 DTS → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
10 material differences · 5 fields identical or within 5%, which is not counted as material
| Field | 55-86 F (F/DT) | 56-66S/56-66 DTS | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 54.2 hp | 54.3 hp | — |
| Engine declared | FIAT-IVECO 8035.06.222 (323) | FIAT-IVECO 8035.06 | differs |
| Displacement declared | 2.71 L | 2.71 L | — |
| Maximum torque declared | — | 130 lb·ft · 176 N·m | — |
| Transmission | |||
| Top speed declared | 18.6–24.9 mph · 30–40 km/h | 18.6–24.9 mph · 30–40 km/h | — |
| Clutch declared | Dry LuK double clutch | Dry O.M.G. or LuK double clutch | differs |
| Hydraulics & hitch | |||
| Hydraulic centre declared | — | Open centre | — |
| Pump flow declared | 10.6 gpm · 40.0 L/min | 9.1 gpm · 34.5 L/min | +16% 55-86 F (F/DT) |
| Pressure declared | 2,698 psi · 186 bar | 3,118 psi · 215 bar | +16% 56-66S/56-66 DTS |
| Three-point lift, at the coupling points declared | 5,236 lb · 2,375 kg | 4,685 lb · 2,125 kg | +12% 55-86 F (F/DT) |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 4,204 lb · 1,907 kg | 4,685 lb · 2,125 kg | +11% 56-66S/56-66 DTS |
| Maximum permissible mass declared | — | 8,488 lb · 3,850 kg | — |
| Wheelbase declared | 72.6 in · 1,844 mm | 78.7 in · 1,999 mm | +8% 56-66S/56-66 DTS |
| Length declared | 128.9 in · 3,275 mm | 127.6 in · 3,241 mm | — |
| Width declared | 60.6 in · 1,540 mm | 60.6–84.3 in · 1,540–2,140 mm | differs |
| Ground clearance declared | 14.6 in · 372 mm | 17.9 in · 455 mm | +22% 56-66S/56-66 DTS |
| Fuel tank declared | 47.6 qt · 45.0 L | 77.1 qt · 73.0 L | +62% 56-66S/56-66 DTS |
Height is not in this table. It is not one measurement: the sources measure it to different points — over the cab on some machines, over the steering wheel or the exhaust on others — and the same tractor measured two ways can differ by most of a metre. It appears here only when both machines' figures carry the point they were measured to and it is the same point, which is not the case for these two. Each machine's own page prints its height as its source gives it.
Fiat 55-86 F (F/DT) sources
- Source: Traktorenlexikon, “Fiatagri 55-86 F/55-86 F/DT”
- Source: Traktorenlexikon, “Fiatagri 55-86 V/55-86 V/DT”
Fiat 56-66S/56-66 DTS sources
- Source: Traktorenlexikon, “Fiatagri 56-66S/56-66 DTS”
- Source: Traktorenlexikon, “Fiat 50-66/50-66 DT”