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Volvo BM 646 backhoe

Built: 1977-1981 · Series: Other models

Source: https://www.truck1.eu/trucks/crane-trucks/volvo/3-axle/loade

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The Volvo BM 646 backhoe is a machine built by Volvo. Production: 1977-1981. The engine delivers 90 hp (66 kW), has 4 cylinders. The engine comes from Volvo BM. The engine is water-cooled. The model was built in Sweden. The fuel is diesel. The engine fitted is the td42. Rated output across the Volvo range ranges from 37 to 163 hp; the BM 646 backhoe sits in the middle of that range with 90 hp. Its immediate neighbours are the T 470 below it with 73 hp and the BM Valmet 905 above it with 110 hp. 5366 Volvo models across 29 series are on record. The model is listed under Excavators & compaction. 15 verified figures from 1 source are on file.

Technical data

Engine

Engine make	Volvo BMcorrect
Engine model	td42correct
Fuel	dieselcorrect
Power	90 hp (66 kW)correct
Cylinders	4correct
Naturally aspirated	turbochargedcorrect
Cooling	water-cooledcorrect

Dimensions and weights

Unladen weight	11,340 kgcorrect

Drivetrain and chassis

Drive	four-wheel driveWDcorrect
Gearbox make	ht 65 by volvocorrect
Clutch	convertercorrect

Origin and approval

Plant	Swedencorrect

Frequently asked questions

How much power does the Volvo BM 646 backhoe have?

The Volvo BM 646 backhoe delivers 90 hp.

What engine does the Volvo BM 646 backhoe have?

4 cylinders, Diesel.

When was the Volvo BM 646 backhoe built?

Production years: 1977-1981.

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.
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 15 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.

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