Technical register for agricultural, construction and commercial machinery · sourced data

Caterpillar 325C LN

Series: Caterpillar Hydraulic Excavator

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The Caterpillar Hydraulic Excavator series from Caterpillar includes the 325C LN. The engine delivers 191.6 hp (129 kW), with a displacement of 7,200.5 cm³. Rated speed is 1,800 rpm. The unladen weight is 27,400 kg. Ground clearance is 481.6 mm. The tank holds 500.1 litres. The pump delivers 470.1 l/min. The hydraulic tank holds 310 litres. Working pressure is 343 bar. The cooling system holds 30.3 litres. The oil fill is 34.1 litres. The electrical system runs on 24 V. The engine fitted is the 3126B ATAAC diesel engine. The Caterpillar Hydraulic Excavator series covers 134 models. Rated output within it ranges from 42.5 to 1,490.4 hp; the 325C LN sits at the bottom of that range with 191.6 hp. Its immediate neighbours are the 229 below it with 182.5 hp and the 324D L above it with 192.6 hp. 1091 Caterpillar models across 47 series are on record. The model is listed under Excavators & compaction. 15 verified figures from 1 source are on file.

Caterpillar 225 to 245 — Cat's first generation of hydraulic excavators

The numeric codes in the “Caterpillar Hydraulic Excavator” collective entry, such as 205, 215, 225, 235 or 245, come from Cat's early 200-series: in 1972 the 225 became Caterpillar's first production-ready hydraulic excavator, weighing around 24 tons with 135 horsepower.

Read on 4 more paragraphs

1973 brought the considerably larger 235, around 40 tons and 195 horsepower, and 1974 the 245 at roughly 66 tons and 325 horsepower, then the largest in the line, available as either a backhoe or a face-shovel configuration. The smaller 215 only joined in 1976 and, unlike the other models, was built by the German manufacturer Eder in Gosselies, Belgium.

The number itself therefore does not follow a strict weight formula but grew historically with each new model launch — it mainly marks the relative position within the product family rather than a fixed tonnage key like in newer series.

In today's collective entry the range runs from compact excavators around 30 kW up to large mining machines around 1,000 kW and well over 300 tons. When buying used, check bucket-tooth, bushing and pin wear as well as any leaks around the boom.

In short: 225, 235, 245 and 215 reflect the historical model order, not a fixed size grid — anyone who needs the exact operating range should check the individual model.

Sources: Kennwerte der Modelle Caterpillar Hydraulic Excavator, Geschichte der fruehen Caterpillar-Hydraulikbagger 200er-Reihe, Excavator Evolution, Caterpillar Unternehmensseite

Technical data

Engine

Engine model3126B ATAAC diesel enginecorrect
Power191.6 hp (129 kW)correct
Rated speed1,800 rpmcorrect
Displacement7,200.5 cm³correct
Coolant capacity30.3 lcorrect
Engine oil capacity34.1 lcorrect

Dimensions and weights

Ground clearance481.6correct
Unladen weight27,400 kgcorrect

Working data

Pump flow470.1 l/mincorrect
Hydraulic oil capacity310 lcorrect
Hydraulic pressure343 barcorrect
Fuel tank capacity500.1 lcorrect

Other data

Cab height3,173correct
System voltage24 Vcorrect

Where this model stands

Power-to-weight ratio: 4.7 kW/t (129 kW / 27.4 t)

Stronger than 63% 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 325C LN have?

The Caterpillar 325C LN delivers 192 hp.

How much does the Caterpillar 325C LN weigh?

The unladen weight is 27,400 kg.

What engine does the Caterpillar 325C LN have?

7,200 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 15 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

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