Hitachi ZX135US-6
Series: Hitachi Hydraulic 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
Hitachi ZX – what the number and letters reveal about weight class, LC/US/W undercarriage variants and the adjustable boom option across the ZAXIS range
Hitachi codes usually start with ZX, short for the ZAXIS line. The following number places the model in an approximate operating-weight class, letters such as LC, US or W describe the undercarriage and configuration, and a dash number at the end marks the generation.
Read on 5 more paragraphs
LC marks a widened undercarriage for extra stability, US denotes ultra-short-tail models with a compact rear overhang for tight jobsites, and W marks wheeled machines. Current models run as ZAXIS-7, while older stock is still labelled -3, -5 or -6.
Alongside these sits the older EX line, such as the EX700: mechanically simpler than the ZX models, with less electronics, but built rugged for heavy continuous duty.
Alongside the one-piece monoboom, many ZX models offer a two-piece adjustable boom whose knuckle can swing sideways; this allows digging along walls or pipelines without having to square the machine itself up to them, though at somewhat lower breakout force than the rigid monoboom.
The collective entry spans small excavators from around 42 kW up to large machines above 480 kW. When buying used, check the hour meter along with the slew ring, boom-and-bucket linkage bushings and any leaks at the hydraulic cylinders.
In short: ZX plus size number plus undercarriage letter plus generation digit make up the full code, as seen on models like ZX120, ZX200 or ZX330.
Sources: SpecCodex register, model data: Hitachi Hydraulic Excavator
Technical data
Engine
| Engine make | Isuzucorrect |
|---|---|
| Engine model | 4JJ1correct |
| Power | 75.3 kWcorrect |
| Rated speed | 2,000 rpmcorrect |
| Cylinders | 4correct |
| Displacement | 3,000.5 cm³correct |
| Aspiration | Turbocharged and charged air cooledcorrect |
Dimensions and weights
| Ground clearance | 411.5 mmcorrect |
|---|---|
| Unladen weight | 13,900 kgcorrect |
More machines with this engine (Isuzu 4JJ1, 3)
Where this model stands
Power-to-weight ratio: 5.4 kW/t (75 kW / 13.9 t)
Stronger than 29% 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 Hitachi ZX135US-6 have?
The Hitachi ZX135US-6 delivers 75.3 kW.
How much does the Hitachi ZX135US-6 weigh?
The unladen weight is 13,900 kg.
What engine does the Hitachi ZX135US-6 have?
4 cylinders, 3,000 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.
Request a quote →
We ask the suppliers and come back with price and lead time.
Request spare parts →
This page carries 9 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.
1 current listings for Hitachi ZX135US-6 on Hutnia.com.
View offers on Hutnia.com →
Missing a figure you were looking for? Report it →
Know this machine better? Have a photo, a manual, or know that a figure is wrong? Add it to the register →
Other models in this series
160 LC
180 LCN
EX 165
EX100-5
EX100M-5
EX1100
EX120-5
EX1200-5C
EX130H-5
EX150LC-5
EX200-5
EX200LC-5
Sources: RitchieSpecs equipment specifications (retrieved August 2026) · How we check the data
Excavator in 3D section
Turn the model, look inside and click an assembly — each one is explained.
