New Holland MH6.6
Series: New Holland Mobile Excavator
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
New Holland wheeled excavators MH2.6 to MH8.6, MH City and MH Plus – the CNH wheeled excavators of the 2000s: MH for mobile hydraulic, the number as size class, City and Plus as compact and comfort versions
The MH range was New Holland's wheeled excavator in the period when CNH ran its construction-equipment programme in parallel under the New Holland and Case brands: wheeled excavators for urban civil engineering that drive between sites on the road and work with outrigger pads and dozer blade. The type logic: MH marks the range, the number orders the size in ascending order – MH2.6 about 10 t, MH3.6 about 13 t, MH5.6 about 17 t, MH8.6 about 23 t – City the compact version with short tail for the city centre, Plus the comfort version and PlusC a further development. The engines are CNH's own NEF range from FPT: the four-cylinder F4BE0484 of 3.9 litres in the small and the six-cylinder F4BE0684 of 5.9 litres in the big models, the same engines as in the group's tractors and wheel loaders.
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The register lists 9 versions with 73.8 to 123.8 kW from four- and six-cylinders of 3,900 to 5,901 cm³ at 2,000 to 2,100 rpm and operating weights from 10,000 to 22,700 kg.
With the consolidation of the construction brands from 2012 the New Holland wheeled excavator disappeared; the successors run as Case WX. The MH models are in the fleets of Italy, France and Eastern Europe.
On used machines, operating hours, play in slew ring and boom bearings, the condition of tyres, oscillating axle, outriggers and blade, leak-free cylinders and swivel joint and parts supply, unproblematic for the NEF engines through CNH and FPT, are what count.
Sources: SpecCodex register, model data: New Holland Mobilbagger, New Holland Construction (manufacturer)
Technical data
Engine
| Engine model | CNH - F4BE0684Acorrect |
|---|---|
| Power | 123.8 kWcorrect |
| Cylinders | 6correct |
| Displacement | 5,901 cm³correct |
| Aspiration | turbocharger and charge air coolingcorrect |
| Coolant capacity | 30.3 lcorrect |
| Engine oil capacity | 16.3 lcorrect |
Dimensions and weights
| Wheelbase | 2,752.3 mmcorrect |
|---|---|
| Ground clearance | 332.2 mmcorrect |
| Unladen weight | 21,480 kgcorrect |
Drivetrain and chassis
| Tyre size | 10.00-20correct |
|---|
Working data
| Pump flow | 512.2 l/mincorrect |
|---|---|
| Hydraulic oil capacity | 160.1 lcorrect |
| Hydraulic pressure | 345 barcorrect |
| Fuel tank capacity | 325.2 lcorrect |
Other data
| Cab height | 3,121.2 mmcorrect |
|---|
More machines with this engine (CNH - F4BE0684A, 2)
Where this model stands
Power-to-weight ratio: 5.8 kW/t (124 kW / 21.5 t)
Stronger than 60% of the excavators & compaction in the register — out of 1,650 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the New Holland MH6.6 have?
The New Holland MH6.6 delivers 124 kW.
How much does the New Holland MH6.6 weigh?
The unladen weight is 21,480 kg.
What engine does the New Holland MH6.6 have?
6 cylinders, 5,901 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.
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This page carries 16 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
Sources: RitchieSpecs equipment specifications (retrieved August 2026) · How we check the data
Excavator in 3D section
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