7 material differences · fewer than 12
Tractor oneFord 6401954–1957No measured PTO figureTractor twoInternational Harvester D-4321962–1966No measured PTO figure
Which should you choose?
Read our verdict on the 640 and the D-432 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
7 material differences · 5 fields identical or within 5%, which is not counted as material
| Field | 640 | D-432 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 31.9 hp | 31.5 hp | — |
| Engine declared | — | INTERNATIONAL-HARVESTER DD-132 | — |
| Displacement declared | — | 2.18 L | — |
| Maximum torque declared | — | 90 lb·ft · 122 N·m | — |
| Transmission | |||
| Top speed declared | 12.4 mph · 20 km/h | 12.4 mph · 20 km/h | — |
| Clutch declared | — | pedal-operated dry single-disc clutch | — |
| Hydraulics & hitch | |||
| Pump flow declared | 2.7–6.0 gpm · 10.2–22.7 L/min | 4.1 gpm · 15.5 L/min | differs |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 3,018 lb · 1,369 kg | 3,294 lb · 1,494 kg | +9% D-432 |
| Wheelbase declared | 74.5 in · 1,892 mm | 74.0 in · 1,880 mm | — |
| Length declared | 120.8 in · 3,069 mm | 115.4 in · 2,930 mm | — |
| Width declared | 63.9–87.5 in · 1,623–2,223 mm | 64.6 in · 1,640 mm | differs |
| Height, over the steering wheel declared | 56.9 in · 1,446 mm | 61.0 in · 1,550 mm | +7% D-432 |
| Ground clearance declared | 21.0 in · 533 mm | 15.0 in · 380 mm | +40% 640 |
| Turning radius, braked declared | 18.0 ft · 5.49 m | 8.9 ft · 2.70 m | +103% 640 |
| Fuel tank declared | 52.8 qt · 50.0 L | 58.1 qt · 55.0 L | +10% D-432 |
Ford 640 sources
Source
- Source: Traktorenlexikon, “Ford 600”
International Harvester D-432 sources
Source
- Source: Traktorenlexikon, “McCormick D-432”
- Source: Traktorenlexikon, “McCormick DGD 4”