12 material differences
Tractor oneFiat 1580 (DT)1979–1984No measured PTO figureTractor twoURSUS 16341990–2009No 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); they were not built in overlapping years (1979–1984; 1990–2009). 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
12 material differences · 5 fields identical or within 5%, which is not counted as material
| Field | 1580 (DT) | 1634 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 153.0 hp | 153 hp | — |
| Engine declared | FIAT-IVECO 8365.25.500 or 8365.05.501 | Z.T.S.-MARTIN Z-8602.12 | differs |
| Displacement declared | 8.10 L | 6.84 L | +18% 1580 (DT) |
| Maximum torque declared | 423–456 lb·ft · 573–618 N·m | 277 lb·ft · 376 N·m | differs |
| Transmission | |||
| Top speed declared | 15.5–18.6 mph · 25–30 km/h | 16.8–18.6 mph · 27–30 km/h | differs |
| Clutch declared | Pedal-operated Ferodo or LuK single-plate clutch | Pedal-operated, hydraulic-dry ZTS-MARTIN single-disc clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 14.7 gpm · 55.8 L/min | — | — |
| Pressure declared | 3,336–3,481 psi · 230–240 bar | 2,828 psi · 195 bar | differs |
| Rear PTO speeds declared | 540/1000 rpm | 540/1000 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 14,330 lb · 6,500 kg | 13,658 lb · 6,195 kg | — |
| Maximum permissible mass declared | 22,046 lb · 10,000 kg | 18,739 lb · 8,500 kg | +18% 1580 (DT) |
| Wheelbase declared | 116.7 in · 2,963 mm | 106.5 in · 2,706 mm | +9% 1580 (DT) |
| Length declared | 170.3 in · 4,325 mm | 177.4 in · 4,505 mm | — |
| Width declared | 92.9 in · 2,360 mm | 89.3 in · 2,267 mm | — |
| Height, over the cab declared | 109.6 in · 2,785 mm | 119.3 in · 3,030 mm | +9% 1634 |
| Ground clearance declared | 27.4 in · 695 mm | 15.6 in · 395 mm | +76% 1580 (DT) |
| Turning radius, braked declared | 15.1 ft · 4.60 m | 17.6 ft · 5.35 m | +16% 1634 |
| Fuel tank declared | 190.2 qt · 180.0 L | 169.1 qt · 160.0 L | +13% 1580 (DT) |
Fiat 1580 (DT) sources
Source
- Source: Traktorenlexikon, “Fiat 1580 DT”
URSUS 1634 sources
Source
- Source: Wikipedia (pl): Ursus 1634 (open data)
- Source: Traktorenlexikon, “Ursus 1634”