Liebherr R974C (395.1 kW)
Series: Liebherr Hydraulic Excavator
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Liebherr R-series: crawler excavator codes between size class and Litronic generation
The "R" in Liebherr's excavator range stands for crawler (Raupe) and separates the line from the wheeled "A" models. The number that follows marks the size class: across the 41 R-series models recorded in SpecCodex, operating weight spans 15,300 to 659,000 kg — from compact excavators in the R-31x class up to mining-scale machines weighing in the hundreds of tonnes.
Read on 3 more paragraphs
The "Litronic" suffix denotes Liebherr's electronically controlled hydraulic system, standard on nearly all R models since the 1980s. Trailing letters (A, B, C…) instead mark successive revision generations of the same model, usually tied to new emissions stages and engines.
For the machines recorded in the database, engine output ranges from 62 to 949 kW, displacement from 3,000 to 65,000 cm³, and cylinder count from 4 to 16 — a span running from compact building-site excavators up to the large engines fitted to mining machines.
When buying used, the generation letter after the number is the best clue to emissions stage and control generation fitted; also check the undercarriage and arm bushings, and cross-check the hour meter against the service book. Models such as R312, R904C, R912 and R996 illustrate the range from compact excavator to large-scale machine.
Sources: Kennwerte der Modelle Liebherr Hydraulic Excavator, – R 928 Litronic, Liebherr, – Erklärung Typenbezeichnungen Liebherr-Bagger, Bauforum24
Technical data
Engine
| Engine model | D9408Ti-Ecorrect |
|---|---|
| Power | 537.1 hp (395.1 kW)correct |
| Rated speed | 1,800 rpmcorrect |
| Cylinders | 8correct |
| Displacement | 17,201.5 cm³correct |
Dimensions and weights
| Ground clearance | 652.3correct |
|---|---|
| Unladen weight | 81,500 kgcorrect |
Working data
| Pump flow | 1,287 l/mincorrect |
|---|---|
| Hydraulic pressure | 320 barcorrect |
Where this model stands
Power-to-weight ratio: 4.8 kW/t (395 kW / 81.5 t)
Stronger than 95% of the excavators & compaction in the register — out of 1,666 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the Liebherr R974C have?
The Liebherr R974C delivers 537 hp.
How much does the Liebherr R974C weigh?
The unladen weight is 81,500 kg.
What engine does the Liebherr R974C have?
8 cylinders, 17,202 cm³ displacement.
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.
We do not sell machines. We ask the dealers who carry this model and come back with price and lead time.
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This page carries 10 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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Other models in this series
R312
R317
R900C
R900HDS
R904C
R912
R914 COMPACT LITRONIC
R914B
R914C
R918 LITRONIC
R920 COMPACT LITRONIC
R924 COMPACT TUNNEL LITRONIC
Sources: [1]
Excavator in 3D section
Turn the model, look inside and click an assembly — each one is explained.