8 material differences · fewer than 12
Tractor oneInternational Harvester 624 (A)1965–1972No measured PTO figureTractor twoJ.I. Case 7311960–1969No measured PTO figure
Which should you choose?
Read our verdict on the 624 (A) and the 731 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
8 material differences · 3 fields identical or within 5%, which is not counted as material
| Field | 624 (A) | 731 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 57.3 hp | 57.9 hp | — |
| Engine declared | INTERNATIONAL-HARVESTER D-206 | — | — |
| Displacement declared | 3.38 L | — | — |
| Maximum torque declared | 151 lb·ft · 205 N·m | — | — |
| Transmission | |||
| Top speed declared | 12.4–15.5 mph · 20–25 km/h | 18.6 mph · 30 km/h | differs |
| Clutch declared | Pedal-operated dry Fichtel & Sachs single-disc clutch | — | — |
| Hydraulics & hitch | |||
| Pump flow declared | 7.5 gpm · 28.3 L/min | 15.6 gpm · 59.0 L/min | +108% 731 |
| Pressure declared | 3,553 psi · 245 bar | — | — |
| Rear PTO speeds declared | 540 rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 5,575 lb · 2,529 kg | 6,956 lb · 3,155 kg | +25% 731 |
| Wheelbase declared | 83.5 in · 2,120 mm | 101.7 in · 2,584 mm | +22% 731 |
| Length declared | 139.0 in · 3,530 mm | 143.4 in · 3,642 mm | — |
| Width declared | 71.5 in · 1,815 mm | 85.2 in · 2,165 mm | +19% 731 |
| Ground clearance declared | 16.5 in · 419 mm | 20.0 in · 508 mm | +21% 731 |
| Turning radius, braked declared | 12.0 ft · 3.65 m | 11.9 ft · 3.63 m | — |
| Fuel tank declared | 74.0 qt · 70.0 L | 69.2 qt · 65.5 L | +7% 624 (A) |
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 624 (A) sources
Source
- Source: Traktorenlexikon, “McCormick 624 (A)”
J.I. Case 731 sources
Source
- Source: Traktorenlexikon, “Case 731”