7 material differences · fewer than 12
Tractor oneBOLINDER-MUNKTELL BM-201945–1950No measured PTO figureTractor twoLanz D 2539-Gas1941–1943No measured PTO figure
Which should you choose?
Read our verdict on the BM-20 and the D 2539-Gas → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
7 material differences · 1 fields identical or within 5%, which is not counted as material
| Field | BM-20 | D 2539-Gas | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 40.5 hp | 39.3 hp | — |
| Engine declared | BOLINDER W-5 | — | — |
| Displacement declared | 5.31 L | — | — |
| Transmission | |||
| Top speed declared | 12.4 mph · 20 km/h | 20.4 mph · 32.8 km/h | +64% D 2539-Gas |
| Clutch declared | — | Pedal operated three-shoe clutch with clutch brake | — |
| Hydraulics & hitch | |||
| Rear PTO speeds declared | 545 rpm | 554 | differs |
| Weight & dimensions | |||
| Unladen weight declared | 5,842 lb · 2,650 kg | 10,979 lb · 4,980 kg | +88% D 2539-Gas |
| Wheelbase declared | 70.9 in · 1,800 mm | 99.0 in · 2,515 mm | +40% D 2539-Gas |
| Length declared | 128.0 in · 3,250 mm | 153.9 in · 3,910 mm | +20% D 2539-Gas |
| Width declared | 68.9 in · 1,750 mm | 85.0 in · 2,160 mm | +23% D 2539-Gas |
| Ground clearance declared | — | 9.6 in · 245 mm | — |
| Fuel tank declared | 79.3 qt · 75 L | 34.9 qt · 33 L | +127% BM-20 |
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.
BOLINDER-MUNKTELL BM-20 sources
- Source: Traktorenlexikon, “Bolinder-Munktell BM 20”
Lanz D 2539-Gas sources
- Source: Traktorenlexikon, “Lanz D 2539 Zweistoff”