10 material differences · fewer than 12
Tractor oneNuffield 3/42 (342)1961–1964No measured PTO figureTractor twoPorsche-Diesel S 3091961–1963No measured PTO figure
Which should you choose?
Read our verdict on the 3/42 (342) and the S 309 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
10 material differences · 4 fields identical or within 5%, which is not counted as material
| Field | 3/42 (342) | S 309 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 39.8 hp | 39.6 hp | — |
| Engine declared | BMC 28 TA | Porsche-Diesel F 309 | differs |
| Displacement declared | 2.83 L | 2.63 L | +8% 3/42 (342) |
| Maximum torque declared | 118 lb·ft · 160 N·m | 102 lb·ft · 138 N·m | +16% 3/42 (342) |
| Transmission | |||
| Top speed declared | 12.4 mph · 20 km/h | 14.7 mph · 23.6 km/h | +18% S 309 |
| Clutch declared | Pedal operated dry Borg & Beck single plate clutch | Single-disc dry clutch with oil-hydraulic Voith fluid coupling | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 7.2 gpm · 27.3 L/min | 4.0 gpm · 15.0 L/min | +82% 3/42 (342) |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 4,330 lb · 1,964 kg | 3,197 lb · 1,450 kg | +35% 3/42 (342) |
| Wheelbase declared | 73.0 in · 1,854 mm | 69.7 in · 1,770 mm | — |
| Length declared | 115.0 in · 2,920 mm | 111.8 in · 2,840 mm | — |
| Width declared | 68.0 in · 1,727 mm | 46.1 in · 1,170 mm | +48% 3/42 (342) |
| Ground clearance declared | 16.7 in · 425 mm | 14.2 in · 360 mm | +18% 3/42 (342) |
| Turning radius, braked declared | 10.0 ft · 3.05 m | — | — |
| Fuel tank declared | 67.2 qt · 63.6 L | 42.3 qt · 40 L | +59% 3/42 (342) |
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 3/42 (342) sources
- Source: Traktorenlexikon, “Nuffield 3/42 (1961-1963)”
Porsche-Diesel S 309 sources
- Source: Traktorenlexikon, “Porsche-Diesel Super S309”