Fiat 540 Spezial (DT) vs Fiat 55-66 (DT)
10 material differences · fewer than 12
Which should you choose?
We will not advise between these two machines, because they were not built in overlapping years (1973–1980; 1985–1992). 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 | 540 Spezial (DT) | 55-66 (DT) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 53.2 hp | 54.3 hp | — |
| Engine declared | FIAT-IVECO 8035.02.204 | FIAT-IVECO 8035.06.206 or 306 | differs |
| Displacement declared | 2.59 L | 2.71 L | — |
| Maximum torque declared | 124 lb·ft · 168 N·m | 128 lb·ft · 174 N·m | — |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 15.5–24.9 mph · 25–40 km/h | differs |
| Clutch declared | Dry LuK double clutch | — | — |
| Hydraulics & hitch | |||
| Pump flow declared | 6.2 gpm · 23.6 L/min | — | — |
| Pressure declared | — | 3,046 psi · 210 bar | — |
| Three-point lift at ends declared | 3,086 lb · 1,400 kg | — | — |
| Rear PTO speeds declared | 540 rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 4,189 lb · 1,900 kg | 4,971 lb · 2,255 kg | +19% 55-66 (DT) |
| Maximum permissible mass declared | 7,937 lb · 3,600 kg | 9,259 lb · 4,200 kg | +17% 55-66 (DT) |
| Wheelbase declared | 75.6 in · 1,920 mm | 85.6 in · 2,175 mm | +13% 55-66 (DT) |
| Length declared | 117.1 in · 2,975 mm | 125.4 in · 3,185 mm | +7% 55-66 (DT) |
| Width declared | 68.5 in · 1,740 mm | 75.2 in · 1,910 mm | +10% 55-66 (DT) |
| Height declared | 92.5 in · 2,350 mm | 90.7 in · 2,305 mm | — |
| Ground clearance declared | 18.9 in · 480 mm | 19.5 in · 495 mm | — |
| Turning radius, braked declared | 11.2 ft · 3.40 m | 12.0 ft · 3.65 m | +7% 55-66 (DT) |
| Fuel tank declared | 57.1 qt · 54.0 L | 77.1 qt · 73.0 L | +35% 55-66 (DT) |
Fiat 540 Spezial (DT) sources
Source
- Source: Traktorenlexikon, “Fiat 540 Special/540 Special DT”
Fiat 55-66 (DT) sources
Source
- Source: Traktorenlexikon, “Fiat 55-66/55-66 DT”