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John Deere 644E

Series: John Deere Wheel Loader

Wikimedia Commons · Public domain · SMSGT DENNIS L. BRAMBL, USAF · Dateiseite

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With the 644E, John Deere offers a model from the John Deere Wheel Loader series. The engine delivers 170.3 hp (119.3 kW), has 6 cylinders, with a displacement of 7,636.4 cm³. Torque is 691.5 Nm. Rated speed is 2,200 rpm. The unladen weight is 15,471.1 kg. The wheelbase measures 3,200.4 mm. Ground clearance is 502.9 mm. The tank holds 283.9 litres. The gearbox has 4 forward gears. There are also 3 reverse gears. Maximum torque is reached at 1,400 rpm. The pump delivers 247.9 l/min. The hydraulic tank holds 115.1 litres. The cooling system holds 28.8 litres. The electrical system runs on 12 V. The engine fitted is the 6466T. Tyre size: 20,5-25. The John Deere Wheel Loader series covers 120 models. Rated output within it ranges from 55.8 to 286.9 hp; the 644E sits in the middle of that range with 170.3 hp. Its immediate neighbours are the 644D below it with 167.3 hp and the 624H Waste Handler above it with 174.4 hp. 2153 John Deere models across 96 series are on record. The model is listed under Wheel loaders. 22 verified figures from 1 source are on file.

Technical data

Engine

Engine model6466Tcorrect
Power170.3 hp (119.3 kW)correct
Rated speed2,200 rpmcorrect
Torque691.5correct
Speed at max. torque1,400 rpmcorrect
Cylinders6correct
Displacement7,636.4 cm³correct
Aspirationturbochargedcorrect
Coolant capacity28.8 lcorrect

Dimensions and weights

Wheelbase3,200.4correct
Ground clearance502.9correct
Unladen weight15,471.1 kgcorrect

Drivetrain and chassis

Gearbox typePower Shiftcorrect
Forward gears4correct
Reverse gears3correct
Tyre size20.5-25correct
System voltage12 Vcorrect

Working data

Pump flow247.9 l/mincorrect
Hydraulic oil capacity115.1 lcorrect
Fuel tank capacity283.9 lcorrect

Other data

Height3,401.6correct

Where this model stands

Power-to-weight ratio: 7.7 kW/t (119 kW / 15.5 t)

Stronger than 61% of the wheel loaders in the register — out of 1,253 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 644E have?

The John Deere 644E delivers 170 hp.

How much does the John Deere 644E weigh?

The unladen weight is 15,471 kg.

What engine does the John Deere 644E 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 22 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

204L

210LE

244E

244H

244J

244K-II

304H Waste Handler

304J

304L

324H

324J

324K

Sources: [1]

Wheel loader in 3D section

Turn the model, look inside and click an assembly — each one is explained.

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