5 material differences · fewer than 12
Tractor oneNuffield M-31948–1954No measured PTO figureTractor twoNuffield M-41948–1957No measured PTO figure
Which should you choose?
Read our verdict on the M-3 and the M-4 → 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 · 8 fields identical or within 5%, which is not counted as material
| Field | M-3 | M-4 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 38.0 hp | 38.0 hp | — |
| Engine declared | MORRIS-COMMERCIAL 38 T/V/T | MORRIS-COMMERCIAL 38 T/V/T | — |
| Displacement declared | 3.77 L | 3.77 L | — |
| Maximum torque declared | 138 lb·ft · 187 N·m | 138 lb·ft · 187 N·m | — |
| Transmission | |||
| Top speed declared | 17.4 mph · 28 km/h | 17.4 mph · 28 km/h | — |
| Hydraulics & hitch | |||
| Pump flow declared | 7.2 gpm · 27.3 L/min | 7.2 gpm · 27.3 L/min | — |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 4,848 lb · 2,199 kg | 4,546 lb · 2,062 kg | +7% M-3 |
| Wheelbase declared | 83.0 in · 2,108 mm | 78.0 in · 1,981 mm | +6% M-3 |
| Length declared | 126.0 in · 3,200 mm | 121.5 in · 3,086 mm | — |
| Width declared | 80.0 in · 2,032 mm | 69.0 in · 1,753 mm | +16% M-3 |
| Ground clearance declared | 23.0 in · 584 mm | 17.0 in · 432 mm | +35% M-3 |
| Fuel tank declared | 76.8 qt · 72.7 L | 67.2 qt · 63.6 L | +14% M-3 |
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 M-3 sources
Source
- Source: Traktorenlexikon, “Nuffield Universal M 3 (1948-1957)”
- Source: Traktorenlexikon, “Nuffield Universal M 4 / TVO (1948-1954”
Nuffield M-4 sources
Source
- Source: Traktorenlexikon, “Nuffield Universal M 4 / TVO (1948-1954”