11 material differences · fewer than 12
Tractor onePorsche-Diesel Super N3081957–1960No measured PTO figureTractor twoSteyr 40, 40h, 40a1967–1977No measured PTO figure
Which should you choose?
Read our verdict on the Super N308 and the 40, 40h, 40a → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
11 material differences · 4 fields identical or within 5%, which is not counted as material
| Field | Super N308 | 40, 40h, 40a | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 38 hp | 38 hp | — |
| Engine declared | Porsche-Diesel F 308 | Steyr WD-307.40 | differs |
| Displacement declared | 2.47 L | 2.26 L | +9% Super N308 |
| Maximum torque declared | 100 lb·ft · 136 N·m | 113 lb·ft · 153 N·m | +13% 40, 40h, 40a |
| Transmission | |||
| Top speed declared | 12.4 mph · 20 km/h | 17.4 mph · 28 km/h | +40% 40, 40h, 40a |
| Clutch declared | — | Pedal operated dry Steyr single plate clutch | — |
| Hydraulics & hitch | |||
| Pump flow declared | 4.0 gpm · 15 L/min | 6.1 gpm · 23.0 L/min | +53% 40, 40h, 40a |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 3,560 lb · 1,615 kg | 4,123 lb · 1,870 kg | +16% 40, 40h, 40a |
| Maximum permissible mass declared | 5,952 lb · 2,700 kg | 6,283 lb · 2,850 kg | +6% 40, 40h, 40a |
| Wheelbase declared | 70.5–71.7 in · 1,790–1,820 mm | 76.8 in · 1,950 mm | differs |
| Length declared | 116.9 in · 2,970 mm | 131.1 in · 3,330 mm | +12% 40, 40h, 40a |
| Width declared | 62.8 in · 1,595 mm | 63.5–70.9 in · 1,614–1,800 mm | differs |
| Ground clearance declared | 14.3 in · 364 mm | 15.0 in · 380 mm | — |
| Turning radius, braked declared | 10.0 ft · 3.05 m | 10.4 ft · 3.16 m | — |
| Fuel tank declared | 48.6 qt · 46 L | 65.5 qt · 62.0 L | +35% 40, 40h, 40a |
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.
Porsche-Diesel Super N308 sources
- Source: Traktorenlexikon, “Porsche-Diesel Super N308”
- Source: Traktorenlexikon, “Porsche-Diesel Super B308”
Steyr 40, 40h, 40a sources
- Source: Traktorenlexikon, “Steyr Plus 40”