9 material differences · fewer than 12
Tractor oneDavid Brown 990 (A)1971–1976No measured PTO figureTractor twoMassey Ferguson MF 1581972–1976No measured PTO figure
Which should you choose?
We will not advise between these two machines, because the drive differs (Two-wheel or four-wheel drive; 2WD). 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
9 material differences · 5 fields identical or within 5%, which is not counted as material
| Field | 990 (A) | MF 158 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 57.3 hp | 55.3 hp | — |
| Engine declared | DAVID BROWN AD 4/49 | Perkins AD 4.203 | differs |
| Displacement declared | 3.19 L | 3.34 L | — |
| Maximum torque declared | 152 lb·ft · 206 N·m | 141 lb·ft · 191 N·m | +8% 990 (A) |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 12.4 mph · 20 km/h | +25% 990 (A) |
| Clutch declared | Dry two-stage double clutch | Pedal operated dry and air-cooled MF double clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | — | 4.0 gpm · 15.1 L/min | — |
| Pressure declared | — | 2,930 psi · 202 bar | — |
| Rear PTO speeds declared | 540 rpm | 1146 | differs |
| Weight & dimensions | |||
| Unladen weight declared | 5,699 lb · 2,585 kg | 5,423 lb · 2,460 kg | — |
| Maximum permissible mass declared | — | 8,378 lb · 3,800 kg | — |
| Wheelbase declared | 82.0 in · 2,083 mm | 84.3 in · 2,140 mm | — |
| Length declared | 130.0 in · 3,302 mm | 138.2 in · 3,510 mm | +6% MF 158 |
| Width declared | 67.0 in · 1,702 mm | 73.6 in · 1,870 mm | +10% MF 158 |
| Ground clearance declared | 20.9 in · 530 mm | 15.4 in · 390 mm | +36% 990 (A) |
| Turning radius, braked declared | 10.8 ft · 3.28 m | 9.9 ft · 3.03 m | +8% 990 (A) |
| Fuel tank declared | 72.3 qt · 68.4 L | 72.1 qt · 68.2 L | — |
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.
David Brown 990 (A) sources
- Source: Traktorenlexikon, “David Brown 900 Synchromesh”
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”