9 material differences · fewer than 12
Tractor oneFiat 450 S (DT)1975–1981No measured PTO figureTractor twoZETOR 49111977–1980No measured PTO figure
Which should you choose?
Read our verdict on the 450 S (DT) and the 4911 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
9 material differences · 6 fields identical or within 5%, which is not counted as material
| Field | 450 S (DT) | 4911 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 44.4 hp | 44.4 hp | — |
| Engine declared | FIAT-IVECO 8035.01.309 | ZBROJORKA Z-4901 | differs |
| Displacement declared | 2.34 L | 2.70 L | +15% 4911 |
| Maximum torque declared | 108 lb·ft · 146 N·m | 105 lb·ft · 143 N·m | — |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 15.5 mph · 25 km/h | — |
| Hydraulics & hitch | |||
| Pump flow declared | 6.2 gpm · 23.4 L/min | 6.6 gpm · 24.8 L/min | +6% 4911 |
| Pressure declared | 2,843 psi · 196 bar | 3,046 psi · 210 bar | +7% 4911 |
| Rear PTO speeds declared | 540 rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 4,079 lb · 1,850 kg | 4,784 lb · 2,170 kg | +17% 4911 |
| Wheelbase declared | 76.9 in · 1,953 mm | 78.3 in · 1,988 mm | — |
| Length declared | 127.3 in · 3,233 mm | 129.5 in · 3,290 mm | — |
| Width declared | 60.8–88.4 in · 1,545–2,245 mm | 70.1–85.8 in · 1,780–2,180 mm | differs |
| Ground clearance declared | 14.6 in · 370 mm | 18.9 in · 480 mm | +30% 4911 |
| Turning radius, braked declared | 9.7 ft · 2.95 m | 9.7 ft · 2.95 m | — |
| Fuel tank declared | 57.1 qt · 54.0 L | 49.7 qt · 47.0 L | +15% 450 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 450 S (DT) sources
- Source: Traktorenlexikon, “Fiat 450-S/450-S DT”
- Source: Traktorenlexikon, “Someca 450 S”
ZETOR 4911 sources
- Source: Traktorenlexikon, “Zetor 4911”