International Harvester D-439 vs Nuffield M-4
12 material differences
Which should you choose?
Read our verdict on the D-439 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
12 material differences · 2 fields identical or within 5%, which is not counted as material
| Field | D-439 | M-4 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 38.5 hp | 38.0 hp | — |
| Engine declared | INTERNATIONAL-HARVESTER DD-148 | MORRIS-COMMERCIAL 38 T/V/T | differs |
| Displacement declared | 2.43 L | 3.77 L | +55% M-4 |
| Maximum torque declared | 98 lb·ft · 133 N·m | 138 lb·ft · 187 N·m | +41% M-4 |
| Transmission | |||
| Top speed declared | 12.4 mph · 20 km/h | 17.4 mph · 28 km/h | +40% M-4 |
| Clutch declared | Pedal operated dry single plate clutch from Fichtel & Sachs | — | — |
| Hydraulics & hitch | |||
| Pump flow declared | 6.3 gpm · 24.0 L/min | 7.2 gpm · 27.3 L/min | +14% M-4 |
| Pressure declared | 2,119 psi · 146 bar | — | — |
| Three-point lift at ends declared | 1,984 lb · 900 kg | — | — |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 3,876 lb · 1,758 kg | 4,546 lb · 2,062 kg | +17% M-4 |
| Wheelbase declared | 74.0 in · 1,880 mm | 78.0 in · 1,981 mm | +5% M-4 |
| Length declared | 115.4 in · 2,930 mm | 121.5 in · 3,086 mm | +5% M-4 |
| Width declared | 64.6 in · 1,640 mm | 69.0 in · 1,753 mm | +7% M-4 |
| Height declared | 61.0 in · 1,550 mm | 80.7 in · 2,051 mm | +32% M-4 |
| Ground clearance declared | 15.0 in · 380 mm | 17.0 in · 432 mm | +14% M-4 |
| Turning radius, braked declared | 8.9 ft · 2.70 m | — | — |
| Fuel tank declared | 58.1 qt · 55.0 L | 67.2 qt · 63.6 L | +16% M-4 |
International Harvester D-439 sources
Source
- Source: Traktorenlexikon, “McCormick D-439”
- Source: Traktorenlexikon, “McCormick D-436 Standard”
Nuffield M-4 sources
Source
- Source: Traktorenlexikon, “Nuffield Universal M 4 / TVO (1948-1954”