9 material differences · fewer than 12
Tractor oneFordson County Super IV1960–1964No measured PTO figureTractor twoInternational Harvester W-4501956–1958No measured PTO figure
Which should you choose?
Read our verdict on the Super IV and the W-450 → 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 · 2 fields identical or within 5%, which is not counted as material
| Field | Super IV | W-450 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 51.2 hp | 51.2 hp | — |
| Engine declared | FORD Mk-3 | INTERNATIONAL HARVESTER C-281 | differs |
| Displacement declared | 3.61 L | 4.60 L | +27% W-450 |
| Maximum torque declared | 173 lb·ft · 234 N·m | — | — |
| Transmission | |||
| Top speed declared | 12.4 mph · 20.0 km/h | 16.2 mph · 26 km/h | +30% W-450 |
| Clutch declared | Pedal-operated dry single-plate clutch | Pedal-actuated dry single-plate clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 5.9 gpm · 22.4 L/min | — | — |
| Rear PTO speeds declared | 540 rpm | 539 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 6,283 lb · 2,850 kg | 5,721 lb · 2,595 kg | +10% Super IV |
| Wheelbase declared | 70.9 in · 1,800 mm | 82.0 in · 2,083 mm | +16% W-450 |
| Length declared | 130.3 in · 3,310 mm | 130.0 in · 3,302 mm | — |
| Width declared | — | 75.7 in · 1,924 mm | — |
| Ground clearance declared | 13.5 in · 342 mm | — | — |
| Turning radius, braked declared | 18.0 ft · 5.50 m | 12.5 ft · 3.80 m | +45% Super IV |
| Fuel tank declared | 72.4 qt · 68.5 L | 79.3 qt · 75.0 L | +9% W-450 |
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.
Fordson County Super IV sources
- Source: Traktorenlexikon, “Fordson County Super IV”
- Source: Traktorenlexikon, “Fordson Power Major”
International Harvester W-450 sources
- Source: Traktorenlexikon, “IHC International W-450”
- Source: Traktorenlexikon, “IHC Farmall 450”