10 material differences · fewer than 12
Tractor oneFiat 55-66 S (DT)1992–1995No measured PTO figureTractor twoFiat 55-86 F (F/DT)1992–2000No measured PTO figure
Which should you choose?
We will not advise between these two machines, because their unladen weight differs by more than 25% (38%). 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
10 material differences · 5 fields identical or within 5%, which is not counted as material
| Field | 55-66 S (DT) | 55-86 F (F/DT) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 54.3 hp | 54.2 hp | — |
| Engine declared | FIAT-IVECO 8035.06 | FIAT-IVECO 8035.06.222 (323) | 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 OMG or LuK double clutch | Dry LuK double clutch | differs |
| Hydraulics & hitch | |||
| Hydraulic centre declared | Open centre | — | — |
| Pump flow declared | 9.1 gpm · 34.5 L/min | 10.6 gpm · 40.0 L/min | +16% 55-86 F (F/DT) |
| Pressure declared | 3,118 psi · 215 bar | 2,698 psi · 186 bar | +16% 55-66 S (DT) |
| Three-point lift, at the coupling points declared | 6,614 lb · 3,000 kg | 5,236 lb · 2,375 kg | +26% 55-66 S (DT) |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 5,809 lb · 2,635 kg | 4,204 lb · 1,907 kg | +38% 55-66 S (DT) |
| Maximum permissible mass declared | 8,488 lb · 3,850 kg | — | — |
| Wheelbase declared | 78.7 in · 1,999 mm | 72.6 in · 1,844 mm | +8% 55-66 S (DT) |
| Length declared | 127.6 in · 3,241 mm | 128.9 in · 3,275 mm | — |
| Width declared | 60.6–84.3 in · 1,540–2,140 mm | 60.6 in · 1,540 mm | differs |
| Ground clearance declared | 18.1 in · 460 mm | 14.6 in · 372 mm | +24% 55-66 S (DT) |
| Fuel tank declared | 77.1 qt · 73.0 L | 47.6 qt · 45.0 L | +62% 55-66 S (DT) |
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 55-66 S (DT) sources
- Source: Traktorenlexikon, “Fiatagri 55-66S/55-66 DTS”
- Source: Traktorenlexikon, “Fiat 50-66/50-66 DT”
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”