5 material differences · fewer than 12
Tractor oneInternational Harvester D-4391962–1966No measured PTO figureTractor twoLamborghini R-240 (DT)1970–1973No measured PTO figure
Which should you choose?
Read our verdict on the D-439 and the R-240 (DT) → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
5 material differences · 6 fields identical or within 5%, which is not counted as material
| Field | D-439 | R-240 (DT) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 38.5 hp | 38.5 hp | — |
| Engine declared | INTERNATIONAL-HARVESTER DD-148 | LAMBORGHINI FL-1002 | differs |
| Displacement declared | 2.43 L | 1.89 L | +29% D-439 |
| Maximum torque declared | 98 lb·ft · 133 N·m | — | — |
| Transmission | |||
| Top speed declared | 12.4 mph · 20 km/h | 15.5 mph · 25 km/h | +25% R-240 (DT) |
| Clutch declared | Pedal operated dry single plate clutch from Fichtel & Sachs | — | — |
| Hydraulics & hitch | |||
| Pump flow declared | 6.3 gpm · 24.0 L/min | 4.4 gpm · 16.7 L/min | +44% D-439 |
| Pressure declared | 2,119 psi · 146 bar | — | — |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 3,876 lb · 1,758 kg | 3,748 lb · 1,700 kg | — |
| Wheelbase declared | 74.0 in · 1,880 mm | 70.5 in · 1,790 mm | — |
| Length declared | 115.4 in · 2,930 mm | 112.6 in · 2,860 mm | — |
| Width declared | 64.6 in · 1,640 mm | 65.0 in · 1,650 mm | — |
| Ground clearance declared | 15.0 in · 380 mm | 16.5 in · 420 mm | +11% R-240 (DT) |
| Turning radius, braked declared | 8.9 ft · 2.70 m | — | — |
| Fuel tank declared | 58.1 qt · 55.0 L | — | — |
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-439 sources
- Source: Traktorenlexikon, “McCormick D-439”
- Source: Traktorenlexikon, “McCormick D-436 Standard”
Lamborghini R-240 (DT) sources
- Source: Traktorenlexikon, “Lamborghini R 240 (DT)”