Caterpillar 312D
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 | C4.2 ACERTcorrect |
|---|---|
| Power | 98.3 hp (67.1 kW)correct |
| Displacement | 4,250.8 cm³correct |
| Coolant capacity | 18.2 lcorrect |
| Engine oil capacity | 19.7 lcorrect |
Dimensions and weights
| Ground clearance | 432.8correct |
|---|---|
| Unladen weight | 12,920 kgcorrect |
Working data
| Pump flow | 127.2 l/mincorrect |
|---|---|
| Hydraulic oil capacity | 162 lcorrect |
| Hydraulic pressure | 350 barcorrect |
| Fuel tank capacity | 250.2 lcorrect |
Other data
| Height | 2,761.5correct |
|---|
Where this model stands
Power-to-weight ratio: 5.2 kW/t (67 kW / 12.9 t)
Stronger than 22% 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 312D have?
The Caterpillar 312D delivers 98.3 hp.
How much does the Caterpillar 312D weigh?
The unladen weight is 12,920 kg.
What engine does the Caterpillar 312D have?
4,251 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 13 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: [1]
Excavator in 3D section
Turn the model, look inside and click an assembly — each one is explained.