10 material differences · fewer than 12
Tractor oneBOLINDER-MUNKTELL BM-201945–1950No measured PTO figureTractor twoDavid Brown 9001957–1958No measured PTO figure
Which should you choose?
Read our verdict on the BM-20 and the 900 → 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 · 1 fields identical or within 5%, which is not counted as material
| Field | BM-20 | 900 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 40.5 hp | 40.1 hp | — |
| Engine declared | BOLINDER W-5 | DAVID BROWN AK-4/30 J or AG-4/30 J | differs |
| Displacement declared | 5.31 L | 2.71 L | +96% BM-20 |
| Transmission | |||
| Top speed declared | 12.4 mph · 20 km/h | 15.5 mph · 25 km/h | +25% 900 |
| Clutch declared | — | Pedal-operated dry BORG & BECK single-plate clutch | — |
| Hydraulics & hitch | |||
| Pump flow declared | — | 10.7 gpm · 40.5 L/min | — |
| Pressure declared | — | 1,493 psi · 103 bar | — |
| Rear PTO speeds declared | 545 rpm | 540 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 5,842 lb · 2,650 kg | 3,999 lb · 1,814 kg | +46% BM-20 |
| Wheelbase declared | 70.9 in · 1,800 mm | 75.2 in · 1,911 mm | +6% 900 |
| Length declared | 128.0 in · 3,250 mm | 116.3 in · 2,953 mm | +10% BM-20 |
| Width declared | 68.9 in · 1,750 mm | 48.5–65.0 in · 1,231–1,651 mm | differs |
| Height, over the steering wheel declared | 72.0 in · 1,830 mm | 54.5 in · 1,384 mm | +32% BM-20 |
| Ground clearance declared | — | 16.0 in · 406 mm | — |
| Turning radius, braked declared | — | 9.6 ft · 2.91 m | — |
| Fuel tank declared | 79.3 qt · 75 L | 55.2 qt · 52.2 L | +44% BM-20 |
BOLINDER-MUNKTELL BM-20 sources
Source
- Source: Traktorenlexikon, “Bolinder-Munktell BM 20”
David Brown 900 sources
Source
- Source: Traktorenlexikon, “David Brown 900”