8 material differences · fewer than 12
Tractor oneInternational Harvester D-4361959–1962No measured PTO figureTractor twoJ.I. Case 5311960–1969No measured PTO figure
Which should you choose?
Read our verdict on the D-436 and the 531 → 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 · 2 fields identical or within 5%, which is not counted as material
| Field | D-436 | 531 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 35.5 hp | 39.8 hp | +12% 531 |
| Engine declared | INTERNATIONAL-HARVESTER DD-148 | — | — |
| Displacement declared | 2.43 L | — | — |
| Maximum torque declared | 98 lb·ft · 133 N·m | — | — |
| Transmission | |||
| Top speed declared | 12.4 mph · 20 km/h | 12.4–21.7 mph · 20–35 km/h | differs |
| Clutch declared | pedal operated dry single plate clutch | — | — |
| Hydraulics & hitch | |||
| Pump flow declared | 6.3 gpm · 24.0 L/min | 9.3 gpm · 35.2 L/min | +47% 531 |
| Pressure declared | 2,119 psi · 146 bar | — | — |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 3,854 lb · 1,748 kg | 4,116 lb · 1,867 kg | +7% 531 |
| Wheelbase declared | 74.0 in · 1,880 mm | 86.3 in · 2,191 mm | +17% 531 |
| Length declared | 126.6 in · 3,215 mm | 130.0 in · 3,302 mm | — |
| Width declared | 64.6 in · 1,640 mm | 79.6 in · 2,022 mm | +23% 531 |
| Ground clearance declared | 15.0 in · 380 mm | 21.0 in · 533 mm | +40% 531 |
| Turning radius, braked declared | 9.2 ft · 2.80 m | 7.9 ft · 2.41 m | +16% D-436 |
| Fuel tank declared | 31.7–58.1 qt · 30.0–55.0 L | 69.2 qt · 65.5 L | differs |
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 D-436 sources
Source
- Source: Traktorenlexikon, “McCormick D-436 Standard”
J.I. Case 531 sources
Source
- Source: Traktorenlexikon, “Case 531”