John Deere 790D

Series: John Deere Hydraulic Excavator

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The John Deere Hydraulic Excavator series from John Deere includes the 790D. The engine delivers 167.3 hp (115.6 kW), has 6 cylinders, with a displacement of 7,636.4 cm³. Torque is 691.5 Nm. Rated speed is 2,100 rpm. The unladen weight is 24,105.3 kg. Ground clearance is 432.8 mm. The tank holds 310.4 litres. Maximum torque is reached at 1,300 rpm. The pump delivers 472.4 l/min. The hydraulic tank holds 268.8 litres. Working pressure is 343.4 bar. The cooling system holds 128.7 litres. The oil fill is 94.6 litres. The electrical system runs on 24 V. The engine fitted is the 6466A. The John Deere Hydraulic Excavator series covers 82 models. Rated output within it ranges from 68.9 to 300.1 hp; the 790D sits in the middle of that range with 167.3 hp. Its immediate neighbours are the 790E LC Long Front below it with 163.2 hp and the 792D LC above it with 175.4 hp. 2153 John Deere models across 96 series are on record. The model is listed under Excavators & compaction. 19 verified figures from 1 source are on file.

Technical data

Engine

Engine model6466Acorrect
Power167.3 hp (115.6 kW)correct
Rated speed2,100 rpmcorrect
Torque691.5correct
Speed at max. torque1,300 rpmcorrect
Cylinders6correct
Displacement7,636.4 cm³correct
AspirationTurbocharged with aftercoolercorrect
Coolant capacity128.7 lcorrect
Engine oil capacity94.6 lcorrect

Dimensions and weights

Ground clearance432.8correct
Unladen weight24,105.3 kgcorrect

Drivetrain and chassis

System voltage24 Vcorrect

Working data

Pump flow472.4 l/mincorrect
Hydraulic oil capacity268.8 lcorrect
Hydraulic pressure343.4 barcorrect
Fuel tank capacity310.4 lcorrect

Other data

Height2,920correct

Where this model stands

Power-to-weight ratio: 4.8 kW/t (116 kW / 24.1 t)

Stronger than 52% 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 John Deere 790D have?

The John Deere 790D delivers 167 hp.

How much does the John Deere 790D weigh?

The unladen weight is 24,105 kg.

What engine does the John Deere 790D have?

6 cylinders, 7,636 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 19 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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