10 material differences · fewer than 12
Tractor oneInternational Harvester B-4501958–1969No measured PTO figureTractor twoNuffield Universal-4 (4 DM)1954–1961No measured PTO figure
Which should you choose?
Read our verdict on the B-450 and the Universal-4 (4 DM) → 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 · 4 fields identical or within 5%, which is not counted as material
| Field | B-450 | Universal-4 (4 DM) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 54.3 hp | 53.9 hp | — |
| Engine declared | INTERNATIONAL HARVESTER BD-264 | BMC 34 TA | differs |
| Displacement declared | 4.33 L | 3.40 L | +27% B-450 |
| Maximum torque declared | 201 lb·ft · 272 N·m | 152 lb·ft · 206 N·m | +32% B-450 |
| Transmission | |||
| Top speed declared | 16.2 mph · 26 km/h | 15.5 mph · 25 km/h | — |
| Clutch declared | Pedal-operated dry single-plate clutch | Pedal-operated dry BORG & BECK single-plate clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 3.6 gpm · 13.6 L/min | 7.2 gpm · 27.3 L/min | +101% Universal-4 (4 DM) |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 5,842 lb · 2,650 kg | 4,945 lb · 2,243 kg | +18% B-450 |
| Wheelbase declared | 79.5 in · 2,019 mm | 78.0 in · 1,981 mm | — |
| Length declared | 131.1 in · 3,330 mm | 121.7 in · 3,091 mm | +8% B-450 |
| Width declared | 51.6–55.9 in · 1,310–1,420 mm | 68.9 in · 1,750 mm | differs |
| Ground clearance declared | 14.8 in · 375 mm | 17.0 in · 432 mm | +15% Universal-4 (4 DM) |
| Fuel tank declared | 83.5 qt · 79.0 L | 67.2 qt · 63.6 L | +24% B-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.
International Harvester B-450 sources
- Source: Traktorenlexikon, “IHC B-450”
- Source: Traktorenlexikon, “McCormick BMD”
- Source: Traktorenlexikon, “McCormick B-450”
Nuffield Universal-4 (4 DM) sources
- Source: Traktorenlexikon, “Nuffield Universal 4 (1954-1961)”