Caterpillar 311B
Series: Caterpillar 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
Technical data
Engine
| Engine model | Cat 3064Tcorrect |
|---|---|
| Power | 86.2 hp (58.9 kW)correct |
| Rated speed | 1,800 rpmcorrect |
| Cylinders | 4correct |
| Displacement | 4,244.2 cm³correct |
| Aspiration | turbochargedcorrect |
| Coolant capacity | 15.5 lcorrect |
| Engine oil capacity | 13.2 lcorrect |
Dimensions and weights
| Ground clearance | 442correct |
|---|---|
| Unladen weight | 12,555.4 kgcorrect |
Drivetrain and chassis
| System voltage | 24 Vcorrect |
|---|
Working data
| Pump flow | 216.1 l/mincorrect |
|---|---|
| Hydraulic oil capacity | 157.1 lcorrect |
| Hydraulic pressure | 343.4 barcorrect |
| Fuel tank capacity | 250.2 lcorrect |
Other data
| Height | 2,761.5correct |
|---|
Where this model stands
Power-to-weight ratio: 4.7 kW/t (59 kW / 12.6 t)
Stronger than 18% 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 Caterpillar 311B have?
The Caterpillar 311B delivers 86.2 hp.
How much does the Caterpillar 311B weigh?
The unladen weight is 12,555 kg.
What engine does the Caterpillar 311B have?
4 cylinders, 4,244 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 17 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.
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
Sources: [1]
Excavator in 3D section
Turn the model, look inside and click an assembly — each one is explained.