8 material differences · fewer than 12
Tractor oneNuffield DM-41950–1954No measured PTO figureTractor twoRenault Super 7D1965–1969No measured PTO figure
Which should you choose?
We will not advise between these two machines, because their unladen weight differs by more than 25% (43%); the drive differs (2WD; 2WD / 4WD); they were not built in overlapping years (1950–1954; 1965–1969). The figures below are side by side so you can judge them yourself; each says whether it was measured, claimed or declared by its source.
Field by field
8 material differences · 3 fields identical or within 5%, which is not counted as material
| Field | DM-4 | Super 7D | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 44.9 hp | 45 hp | — |
| Engine declared | PERKINS P-4 | — | — |
| Displacement declared | 3.15 L | — | — |
| Maximum torque declared | 130 lb·ft · 176 N·m | 115 lb·ft · 156 N·m | +13% DM-4 |
| Transmission | |||
| Top speed declared | 17.4 mph · 28 km/h | 15.5 mph · 25 km/h | +12% DM-4 |
| Clutch declared | — | Two-stage pedal-operated dry FERODO double clutch | — |
| Hydraulics & hitch | |||
| Pump flow declared | 7.2 gpm · 27.3 L/min | 4.8 gpm · 18.0 L/min | +52% DM-4 |
| Pressure declared | — | 2,277 psi · 157 bar | — |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 4,996 lb · 2,266 kg | 3,505–4,101 lb · 1,590–1,860 kg | differs |
| Wheelbase declared | 78.0 in · 1,981 mm | 72.8–73.6 in · 1,850–1,870 mm | differs |
| Length declared | 121.5 in · 3,086 mm | 124.0–126.0 in · 3,150–3,200 mm | — |
| Width declared | 69.0 in · 1,753 mm | 61.8–84.3 in · 1,570–2,140 mm | differs |
| Ground clearance declared | 17.0 in · 432 mm | 11.4–15.4 in · 290–390 mm | differs |
| Turning radius, braked declared | — | 9.5 ft · 2.90 m | — |
| Fuel tank declared | 67.2 qt · 63.6 L | 42.3 qt · 40.0 L | +59% DM-4 |
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.
Nuffield DM-4 sources
- Source: Traktorenlexikon, “Nuffield Universal DM 4 / Diesel (1950-1954)”
Renault Super 7D sources
- Source: Traktorenlexikon, “Renault Super 7D R7055”
- Source: Traktorenlexikon, “Renault Super 7 D/R 7055”