Liebherr UTM 645 – specifications
Built: 2001 · Series: UTM
Data for the version built 2001 · Data origin: Official register · sources
More machines from model year 2001
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Liebherr UTM – collective page of heavy Liebherr vehicles over 7.5 tonnes: six- to twelve-cylinder diesel engines up to 22 litres displacement, 24 to 72 tonnes operating weight
This page gathers heavy Liebherr vehicles of the UTM range, which the register assigns by weight and displacement to the class of trucks over 7.5 tonnes. Liebherr, founded in 1949 by Hans Liebherr in Kirchdorf an der Iller, began by building tower cranes and over the following decades entered practically every segment of construction machinery, from earthmoving equipment through concrete technology to mobile and crawler cranes; the company remains family-owned to this day. The vehicles listed here, with six to twelve cylinders, displacement up to 22 litres and gross weights up to 72 tonnes, correspond to the scale of Liebherr's mobile-crane carrier chassis, which are registered as stand-alone trucks so they can travel on public roads between construction sites.
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The register lists here 11 versions from six- to twelve-cylinder engines of 14,000 to 21,930 cm³, unladen weights from 23,900 to 71,900 kg, gross weights from 24,000 to 72,000 kg, lengths from 10,490 to 12,640 mm and widths from 2,500 to 3,000 mm.
Vehicles of this size are used in building and civil engineering, wind-turbine erection and industrial-plant construction, where Liebherr ranks alongside Krupp/Terex, Grove and Tadano among the established makers of heavy mobile-crane technology; the high gross weights close to the unladen weight reflect that a large part of the vehicle mass consists of the permanently fitted crane structure and counterweights.
On used examples, engine and hydraulic-pump operating hours, the condition of axles and steering on multi-axle chassis, the tightness of hydraulic lines and the service history of the crane structure and boom sections count; parts and service run through Liebherr's own dealer network.
Sources: SpecCodex register, model data: Liebherr UTM, Liebherr (manufacturer)
Technical data
Engine
| Power | 300 kWcorrect |
|---|---|
| Displacement | 14,000 cm³correct |
Dimensions and weights
| Width | 2,750 mmcorrect |
|---|---|
| Unladen weight | 47,750 kgcorrect |
Frequently asked questions
How much power does the Liebherr UTM 645 have?
The Liebherr UTM 645 delivers 300 kW.
How much does the Liebherr UTM 645 weigh?
The unladen weight is 47,750 kg.
What engine does the Liebherr UTM 645 have?
14,000 cm³ displacement.
When was the Liebherr UTM 645 built?
Production years: 2001.
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.
- 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 5 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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Other models in this series
Sources: Traficom — Finnish vehicle register (retrieved August 2026) · Data sources and cross-checks
Mobile crane in 3D section
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