5 material differences · fewer than 12
Tractor oneBOLINDER-MUNKTELL BM-41939–1944No measured PTO figureTractor twoLanz D 85391934–1939No measured PTO figure
Which should you choose?
Read our verdict on the BM-4 and the D 8539 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
5 material differences · 1 fields identical or within 5%, which is not counted as material
| Field | BM-4 | D 8539 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 31.5 hp | 29.5 hp | +7% BM-4 |
| Transmission | |||
| Top speed declared | 9.3 mph · 15 km/h | 13.4 mph · 21.5 km/h | +43% D 8539 |
| Clutch declared | — | pedal-operated three-jaw clutch with clutch brake | — |
| Hydraulics & hitch | |||
| Rear PTO speeds declared | 610 rpm | — | — |
| Weight & dimensions | |||
| Unladen weight declared | 5,181 lb · 2,350 kg | 9,149 lb · 4,150 kg | +77% D 8539 |
| Wheelbase declared | 75.0 in · 1,905 mm | 76.4–77.8 in · 1,940–1,975 mm | — |
| Length declared | 137.0 in · 3,480 mm | 129.9 in · 3,300 mm | +5% BM-4 |
| Width declared | 66.9 in · 1,700 mm | 70.9 in · 1,800 mm | +6% D 8539 |
| Ground clearance declared | 15.7 in · 400 mm | 9.4–10.6 in · 240–270 mm | differs |
| Fuel tank declared | — | 95.1–100.4 qt · 90–95 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.
BOLINDER-MUNKTELL BM-4 sources
Source
- Source: Traktorenlexikon, “Bolinder-Munktell BM 4”
Lanz D 8539 sources
Source
- Source: Traktorenlexikon, “Lanz D 8539”