10 material differences · fewer than 12
Tractor oneSOMECA 450 Special V/E1978–1982No measured PTO figureTractor twoZETOR 49111977–1980No measured PTO figure
Which should you choose?
Read our verdict on the 450 Special V/E 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
10 material differences · 5 fields identical or within 5%, which is not counted as material
| Field | 450 Special V/E | 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 | — |
| Clutch declared | Dry FEREDO double clutch | — | — |
| 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 | 3,858 lb · 1,750 kg | 4,784 lb · 2,170 kg | +24% 4911 |
| Wheelbase declared | 75.6 in · 1,920 mm | 78.3 in · 1,988 mm | — |
| Length declared | 122.8 in · 3,120 mm | 129.5 in · 3,290 mm | +5% 4911 |
| Width declared | 38.6–43.3 in · 980–1,100 mm | 70.1–85.8 in · 1,780–2,180 mm | differs |
| Ground clearance declared | 13.4 in · 340 mm | 18.9 in · 480 mm | +41% 4911 |
| Turning radius, braked declared | 9.4 ft · 2.85 m | 9.7 ft · 2.95 m | — |
| Fuel tank declared | 57.1 qt · 54.0 L | 49.7 qt · 47.0 L | +15% 450 Special V/E |
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.
SOMECA 450 Special V/E sources
- Source: Traktorenlexikon, “Someca 450 SE/SV”
- Source: Traktorenlexikon, “Someca 450 S”
ZETOR 4911 sources
- Source: Traktorenlexikon, “Zetor 4911”