Technical register for agricultural, construction and commercial machinery · sourced data

Bolinder Munktell BM-2

Built: 1939–1946 · Series: Other models

More machines from model year 1939

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The Bolinder Munktell BM-2 is a machine built by Bolinder Munktell. Production: 1939–1946. The engine delivers 32 hp (23.5 kW), has 2 cylinders, with a displacement of 5,312 cm³. The engine comes from Bolinders. Rated speed is 900 rpm. The machine is 2,870 mm long, 1,610 mm wide and 1,400 mm high. The unladen weight is 2,100 kg. The wheelbase measures 1,780 mm. Top speed is 15 km/h. The tank holds 75 litres. Transmission: 4 V/1 R. The engine is water-cooled. Tyres: front 750 x 130, rear 1.150 x 275. The model was built in Sweden. The fuel is Dieselöl. The bore measures 150.1 mm. The stroke is 150.1 mm. Construction: unit construction (no separate frame). The gearbox offers 4 forward gears. There are also 1 reverse gears. Around 473 (incl. GBM-2) units were built. Rated output across the Bolinder Munktell range ranges from 23 to 111.5 hp; the BM-2 sits at the bottom of that range with 32 hp. Its immediate neighbours are the BM-24/BM-25 below it with 28 hp and the 230 VICTOR above it with 33 hp. Rated output across the Bolinder Munktell range ranges from 23 to 57 hp; here the BM-2 sits in the lower part of that range with 32 hp. 46 Bolinder Munktell models across 4 series are on record.

Bolinder-Munktell – other models: collective page of Swedish tractors outside the named ranges, from the Victor and Buster to the Boxer, Terrier and Bison, 16.9 to 51.5 kW, Bolinders and Volvo engines

This page gathers the Bolinder-Munktell tractors the register could not assign to a named range, with the animal-named ranges Victor, Buster, Boxer, Terrier and Bison. Munktells of Eskilstuna built the first tractor made in Sweden in 1913 and merged in 1932 with the engine maker J & C.O. Bolinder to form Bolinder-Munktell; in 1950 the company became part of the Volvo group and traded from then on as Volvo BM. The BM numbers such as the BM-15 or BM-24 denote early internal types, while the later T numbers such as the T 650 or T 800 refer to the post-war models.

Read on 3 more paragraphs

The register lists here 36 versions with 16.9 to 51.5 kW from two- to six-cylinder engines of 1,414 to 5,312 cm³, unladen weights of 1,225 to 3,405 kg, lengths of 2,550 to 3,570 mm, widths of 1,600 to 1,900 mm and heights of 1,400 to 2,500 mm; torque ranges from 97 to 304 Nm. Engines came from Bolinders, Volvo and Perkins; besides diesel, petrol and, for wartime reasons, wood gas are also recorded as fuel.

Until its merger with Volvo, Bolinder-Munktell was one of the most significant Swedish tractor makers, and its rugged designs laid the technical foundation for the later Volvo BM and Valmet-Valtra tractor line.

When buying one of these decades-old machines used, rust on the frame and mudguards, the condition of the cooling system and head gasket, and on the petrol and wood-gas models the ignition system all matter. Parts can be found through Swedish and Scandinavian vintage-vehicle specialists and partly through later Volvo BM stock.

Sources: SpecCodex register, model data: Bolinder-Munktell (weitere Modelle)

Technical data

Engine

Engine makeBolinderscorrect
FuelDieselölcorrect
Power32 hp (23.5 kW)correct
Rated speed900 rpmcorrect
Cylinders2correct
Displacement5,312 cm³correct
Bore150.1 mmcorrect
Stroke150.1 mmcorrect
Coolingwater-cooledcorrect

Dimensions and weights

Length2,870 mmcorrect
Width1,610 mmcorrect
Height1,400 mmcorrect
Wheelbase1,780 mmcorrect
Unladen weight2,100 kgcorrect

Drivetrain and chassis

Driverear-wheel drivecorrect
Gearbox4 V/1 Rcorrect
Forward gears4correct
Reverse gears1correct
Front tyres750 x 130correct
Rear tyres1.150 x 275correct
Top speed15 km/hcorrect

Working data

Fuel tank capacity75 lcorrect

Origin and approval

PlantSwedencorrect
Constructionunit construction (no separate frame)correct
Units built473 (incl. GBM-2)correct

Where this model stands

Power-to-weight ratio: 11.2 kW/t (24 kW / 2.1 t)

Power class: Compact (< 40 hp)

Stronger than 19% 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 BM-2 have?

The Bolinder Munktell BM-2 delivers 32 hp.

How much does the Bolinder Munktell BM-2 weigh?

The unladen weight is 2,100 kg.

What engine does the Bolinder Munktell BM-2 have?

2 cylinders, 5,312 cm³ displacement, Dieselöl.

How fast does the Bolinder Munktell BM-2 go?

Top speed is 15 km/h.

What are the dimensions of the Bolinder Munktell BM-2?

2,870 mm × 1,610 mm × 1,400 mm.

When was the Bolinder Munktell BM-2 built?

Production years: 1939–1946.

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.
  • Check front and rear tyre sizes: mismatched pairs strain the drivetrain.
  • Shift the gearbox cold and warm — jumps only show up at temperature.
  • 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 30 individual figures for this model. They come from 3 recorded sources; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.

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Other models in this series

Sources: Wikibooks Traktorenlexikon (CC BY-SA 4.0) (retrieved August 2026) · Tractor & Construction Plant Wiki (retrieved August 2026) · How we check the data

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