8 material differences · fewer than 12
Tractor oneDavid Brown 990 Implematic1961–1965No measured PTO figureTractor twoSteyr 2901966–1967No measured PTO figure
Which should you choose?
We will not advise between these two machines, because they were not built in overlapping years (1961–1965; 1966–1967). 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 · 4 fields identical or within 5%, which is not counted as material
| Field | 990 Implematic | 290 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 52.0 hp | 49.3 hp | +5% 990 Implematic |
| Engine declared | DAVID BROWN AD 4/47 A | Steyr WD-406 | differs |
| Displacement declared | 3.04 L | 3.02 L | — |
| Maximum torque declared | 141 lb·ft · 191 N·m | 136 lb·ft · 184 N·m | — |
| Transmission | |||
| Top speed declared | 13.7 mph · 22 km/h | 17.4 mph · 28 km/h | +27% 290 |
| Clutch declared | — | pedal-operated dry single-disc clutch | — |
| Hydraulics & hitch | |||
| Pump flow declared | 6.0 gpm · 22.7 L/min | 8.5 gpm · 32.0 L/min | +41% 290 |
| Pressure declared | — | 2,489 psi · 172 bar | — |
| Rear PTO speeds declared | 540 rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 4,771 lb · 2,164 kg | 4,343 lb · 1,970 kg | +10% 990 Implematic |
| Wheelbase declared | 76.7–78.7 in · 1,948–1,999 mm | 79.3 in · 2,015 mm | — |
| Length declared | 118.0–121.0 in · 2,997–3,073 mm | 135.0 in · 3,430 mm | differs |
| Width declared | 64.0 in · 1,626 mm | 66.1 in · 1,680 mm | — |
| Ground clearance declared | 20.0 in · 508 mm | 14.8 in · 375 mm | +35% 990 Implematic |
| Turning radius, braked declared | 10.5 ft · 3.20 m | — | — |
| Fuel tank declared | 55.2 qt · 52.2 L | 77.1 qt · 73.0 L | +40% 290 |
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 Implematic sources
- Source: Traktorenlexikon, “David Brown 990 Implematic”
Steyr 290 sources
- Source: Traktorenlexikon, “Steyr 290”