9 material differences · fewer than 12
Tractor oneJ.I. Case 4301960–1969No measured PTO figureTractor twoNuffield PM-41951–1957No measured PTO figure
Which should you choose?
Read our verdict on the 430 and the PM-4 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
9 material differences · 2 fields identical or within 5%, which is not counted as material
| Field | 430 | PM-4 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 35.0 hp | 48.0 hp | +37% PM-4 |
| Engine declared | CASE G-188 D | MORRIS-COMMERCIAL 38 T/V | differs |
| Displacement declared | 3.09 L | 3.77 L | +22% PM-4 |
| Maximum torque declared | — | 148 lb·ft · 200 N·m | — |
| Transmission | |||
| Top speed declared | 12.4–21.7 mph · 20–35 km/h | 17.4 mph · 28 km/h | differs |
| Clutch declared | — | Pedal-operated dry single-plate clutch | — |
| Hydraulics & hitch | |||
| Pump flow declared | 8.5 gpm · 32.2 L/min | 7.2 gpm · 27.3 L/min | +18% 430 |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 3,124 lb · 1,417 kg | 4,546 lb · 2,062 kg | +46% PM-4 |
| Wheelbase declared | 75.2 in · 1,911 mm | 78.0 in · 1,981 mm | — |
| Length declared | 130.2 in · 3,307 mm | 121.5 in · 3,086 mm | +7% 430 |
| Width declared | 61.4 in · 1,559 mm | 69.0 in · 1,753 mm | +12% PM-4 |
| Ground clearance declared | 13.8 in · 350 mm | 17.0 in · 432 mm | +23% PM-4 |
| Turning radius, braked declared | 7.9 ft · 2.41 m | — | — |
| Fuel tank declared | 40.8 qt · 38.6 L | 67.2 qt · 63.6 L | +65% PM-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.
J.I. Case 430 sources
Source
- Source: Traktorenlexikon, “Case 430”
- Source: Traktorenlexikon, “Case 431”
Nuffield PM-4 sources
Source
- Source: Traktorenlexikon, “Nuffield Universal PM 4 / Petrol (1948-1954)”