10 material differences · fewer than 12
Tractor oneInternational Harvester 444 USA1967–1971No measured PTO figureTractor twoVALMET 33 D1957–1959No measured PTO figure
Which should you choose?
Read our verdict on the 444 USA and the 33 D → 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 · 3 fields identical or within 5%, which is not counted as material
| Field | 444 USA | 33 D | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 36.3 hp | 36.5 hp | — |
| Engine declared | INTERNATIONAL HARVESTER C-153 | VALMET 309 D | differs |
| Displacement declared | 2.49 L | 2.69 L | +8% 33 D |
| Maximum torque declared | 113 lb·ft · 153 N·m | — | — |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 18.6 mph · 30 km/h | +20% 33 D |
| Clutch declared | — | Pedal-operated dry single-plate clutch | — |
| Hydraulics & hitch | |||
| Pump flow declared | 5.9 gpm · 22.5 L/min | 3.7 gpm · 14.0 L/min | +61% 444 USA |
| Rear PTO speeds declared | 540/1000 rpm | 540 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 4,070 lb · 1,846 kg | 3,715 lb · 1,685 kg | +10% 444 USA |
| Wheelbase declared | 70.0 in · 1,778 mm | 74.8 in · 1,900 mm | +7% 33 D |
| Length declared | 121.0 in · 3,073 mm | 115.9 in · 2,945 mm | — |
| Width declared | 65.0 in · 1,651 mm | 67.7 in · 1,720 mm | — |
| Ground clearance declared | 17.0 in · 432 mm | 19.9 in · 505 mm | +17% 33 D |
| Turning radius, braked declared | 8.2 ft · 2.49 m | 10.7 ft · 3.25 m | +31% 33 D |
| Fuel tank declared | 56.0 qt · 53.0 L | 39.1 qt · 37.0 L | +43% 444 USA |
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.
International Harvester 444 USA sources
- Source: Traktorenlexikon, “IHC 444 USA”
- Source: Traktorenlexikon, “McCormick Farmall-H”
VALMET 33 D sources
- Source: Traktorenlexikon, “Valmet 33 D”