10 material differences · fewer than 12
Tractor oneInternational Harvester 7441974–1980No measured PTO figureTractor twoSOMECA 640 (TD)1973–1982No measured PTO figure
Which should you choose?
Read our verdict on the 744 and the 640 (TD) → 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 | 744 | 640 (TD) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 65.7 hp | 63.2 hp | — |
| Engine declared | IHC D-239 | FIAT-IVECO 8045.02.200/307 | differs |
| Displacement declared | 3.91 L | 3.46 L | +13% 744 |
| Maximum torque declared | 161 lb·ft · 218 N·m | 162 lb·ft · 219 N·m | — |
| Transmission | |||
| Top speed declared | 15.5–18.6 mph · 25–30 km/h | 15.5 mph · 25 km/h | differs |
| Clutch declared | dry dual clutch | — | — |
| Hydraulics & hitch | |||
| Pump flow declared | 7.2 gpm · 27.2 L/min | — | — |
| Three-point lift, at the coupling points declared | 6,393 lb · 2,900 kg | 4,034 lb · 1,830 kg | +58% 744 |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 6,790 lb · 3,080 kg | 4,685 lb · 2,125 kg | +45% 744 |
| Maximum permissible mass declared | 12,456 lb · 5,650 kg | — | — |
| Wheelbase declared | 87.6 in · 2,226 mm | 81.5 in · 2,070 mm | +8% 744 |
| Length declared | 138.7 in · 3,524 mm | 138.6 in · 3,520 mm | — |
| Width declared | 80.6 in · 2,048 mm | 67.5–93.1 in · 1,715–2,365 mm | differs |
| Ground clearance declared | 19.7 in · 500 mm | 17.5 in · 444 mm | +13% 744 |
| Turning radius, braked declared | 12.2 ft · 3.72 m | 11.2 ft · 3.42 m | +9% 744 |
| Fuel tank declared | 74.0 qt · 70 L | 57.1 qt · 54.0 L | +30% 744 |
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 744 sources
- Source: Traktorenlexikon, “IHC 744”
- Source: Traktorenlexikon, “Case-IH 4210”
SOMECA 640 (TD) sources
- Source: Traktorenlexikon, “Someca 640”