Bolinder Munktell Volvo BM 400
Built: 1964 · Series: Other models
More machines from model year 1964
Not the right version? The data comes from vehicle registers holding many near-identical versions side by side. Photograph the data plate — we read make and type from it. Open the scanner e-mail address required
Bolinder-Munktell BM 400: Swedish tractor from Eskilstuna from 1964 with a 2,500cc four-cylinder, 35 kW and an eight-speed gearbox
Bolinder-Munktell, based in Eskilstuna in Sweden, was the tractor manufacturer that later merged into the Volvo BM brand; the “other models” range in the register gathers the tractors that could not be assigned to a named range. The BM 400 was built in 1964 at this Swedish plant.
Read on 3 more paragraphs
The BM 400 carries a four-cylinder engine with 2,500 cm³ of displacement, producing 35 kW, sent through an eight-speed gearbox. At 2,050 kg, 3,100 mm long and 1,700 mm wide, the machine belongs to the medium size class of Scandinavian farm tractors of its time.
Eight gear ratios allowed a generous spread between field and road speed for the 1960s, without the four-cylinder having to work outside its economical speed range. Tractors of this size class in Swedish and northern European farming of the period were built for mixed arable work and grassland tasks. The four-cylinder at 2,500 cm³ was sized adequately for this size class without reaching its limits under full load.
When buying a tractor of this age used, the condition of the clutch and gearbox matters, since the eight-speed transmission is mechanically more complex than the simpler four-speed gearboxes of the period. Also important are corrosion damage to the frame and mudguards and the tightness of the hydraulic connections for towed implements. On a tractor of this age, the condition of the power take-off shaft and its guard also belongs on the checklist.
Sources: SpecCodex-Register: Kennwerte des Modells Bolinder-Munktell BM 400
Technical data
Engine
| Power | 35 kWcorrect |
|---|---|
| Cylinders | 4correct |
| Displacement | 2,500 cm³correct |
Dimensions and weights
| Length | 3,100 mmcorrect |
|---|---|
| Width | 1,700 mmcorrect |
| Unladen weight | 2,050 kgcorrect |
Drivetrain and chassis
| Gears | 8correct |
|---|
Where this model stands
Power-to-weight ratio: 17.1 kW/t (35 kW / 2 t)
Power class: Universal (40–100 hp)
Stronger than 32% of the tractors in the register — out of 15,663 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the Bolinder Munktell Volvo BM 400 have?
The Bolinder Munktell Volvo BM 400 delivers 35 kW.
How much does the Bolinder Munktell Volvo BM 400 weigh?
The unladen weight is 2,050 kg.
What engine does the Bolinder Munktell Volvo BM 400 have?
4 cylinders, 2,500 cm³ displacement.
What are the dimensions of the Bolinder Munktell Volvo BM 400?
3,100 mm × 1,700 mm.
When was the Bolinder Munktell Volvo BM 400 built?
Production years: 1964.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Check the weights in the papers against the figures here — attachments change them.
- Load the hydraulics and watch for sag.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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This page carries 8 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
The technical data on this page comes from official vehicle registration records (RDW/Traficom), not from the manufacturer.
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Sources: Traficom — Finnish vehicle register (retrieved August 2026) · How we check the data
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.
