5 material differences · fewer than 12
Tractor oneBOLINDER-MUNKTELL BM-41939–1944No measured PTO figureTractor twoInternational Harvester Farmall 301931–1940No measured PTO figure
Which should you choose?
Read our verdict on the BM-4 and the Farmall 30 → 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 · 2 fields identical or within 5%, which is not counted as material
| Field | BM-4 | Farmall 30 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 31.5 hp | 30.6 hp | — |
| Engine declared | — | INTERNATIONAL HARVESTER 284 | — |
| Displacement declared | — | 4.65 L | — |
| Transmission | |||
| Top speed declared | 9.3 mph · 15 km/h | 3.7 mph · 6.0 km/h | +150% BM-4 |
| Clutch declared | — | Pedal-operated dry ROCKFORD single-plate clutch | — |
| Hydraulics & hitch | |||
| Rear PTO speeds declared | 610 rpm | 534 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 5,181 lb · 2,350 kg | 5,300 lb · 2,404 kg | — |
| Wheelbase declared | 75.0 in · 1,905 mm | 94.0 in · 2,388 mm | +25% Farmall 30 |
| Length declared | 137.0 in · 3,480 mm | 147.0 in · 3,734 mm | +7% Farmall 30 |
| Width declared | 66.9 in · 1,700 mm | 89.3–97.0 in · 2,267–2,464 mm | differs |
| Ground clearance declared | 15.7 in · 400 mm | — | — |
| Turning radius, braked declared | — | 8.5 ft · 2.59 m | — |
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: Traktorenlexikon, “Bolinder-Munktell BM 4”
International Harvester Farmall 30 sources
- Source: Traktorenlexikon, “McCormick F-30”
- Source: Traktorenlexikon, “McCormick 10-20”
- Source: Traktorenlexikon, “Farmall F-30”