8 material differences · fewer than 12
Tractor oneMassey Ferguson MF 1581972–1976No measured PTO figureTractor twoPorsche-Diesel Master 4081958–1960No measured PTO figure
Which should you choose?
We will not advise between these two machines, because they were not built in overlapping years (1972–1976; 1958–1960). The figures below are side by side so you can judge them yourself; each says whether it was measured, claimed or declared by its source.
Field by field
8 material differences · 5 fields identical or within 5%, which is not counted as material
| Field | MF 158 | Master 408 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 55.3 hp | 49.1 hp | +13% MF 158 |
| Engine declared | Perkins AD 4.203 | Porsche-Diesel F 408 | differs |
| Displacement declared | 3.34 L | 3.29 L | — |
| Maximum torque declared | 141 lb·ft · 191 N·m | 132 lb·ft · 178 N·m | +7% MF 158 |
| Transmission | |||
| Top speed declared | 12.4 mph · 20 km/h | 12.1 mph · 19.5 km/h | — |
| Clutch declared | Pedal operated dry and air-cooled MF double clutch | Hydraulic Voith fluid coupling and Fichtel & Sachs double dry clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 4.0 gpm · 15.1 L/min | 6.6 gpm · 25.0 L/min | +66% Master 408 |
| Pressure declared | 2,930 psi · 202 bar | — | — |
| Rear PTO speeds declared | 1146 | 540 | differs |
| Weight & dimensions | |||
| Unladen weight declared | 5,423 lb · 2,460 kg | 5,401 lb · 2,450 kg | — |
| Maximum permissible mass declared | 8,378 lb · 3,800 kg | — | — |
| Wheelbase declared | 84.3 in · 2,140 mm | 97.0 in · 2,465 mm | +15% Master 408 |
| Length declared | 138.2 in · 3,510 mm | 143.7 in · 3,650 mm | — |
| Width declared | 73.6 in · 1,870 mm | 73.4 in · 1,865 mm | — |
| Ground clearance declared | 15.4 in · 390 mm | 17.2 in · 437 mm | +12% Master 408 |
| Turning radius, braked declared | 9.9 ft · 3.03 m | — | — |
| Fuel tank declared | 72.1 qt · 68.2 L | 48.6 qt · 46 L | +48% MF 158 |
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.
Massey Ferguson MF 158 sources
- Source: Traktorenlexikon, “Massey Ferguson MF 158”
- Source: Traktorenlexikon, “Eicher 3354 Mammut 74 A”
- Source: Traktorenlexikon, “Massey Ferguson MF 158 S”
Porsche-Diesel Master 408 sources
- Source: Traktorenlexikon, “Porsche-Diesel Master N408”