Embed
Paste on your site — shows live UK/US specs and links back here. Free to use.
Industrial Tractor · 1992Unverified

John Deere 644G

John Deere 644G — Wheel Loader · 178 hp. Reference specifications; pending source verification.

The John Deere 644G is a model of industrial tractor, boasting a rated power output of 178 hp, positioning it at the higher end of its class. It was manufactured between 1992 and 1998. Equipped with a 6-cylinder turbocharged diesel liquid-cooled engine, the 644G features four-wheel drive and a powershift transmission. Its listed operating weight is 15,983 kg, making it suitable for operations spanning approximately 600 to 1,500 acres.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power
178 hp
Weight
15983 kg

Catalogue coverage

Variants represented
2
Richest spec table
52 rows
Recorded power
178 hp
Recorded weight
15983 kg
Transmissions
4-speed power shift
Production years
1992-1998
Verified variants
0

1 linked source document displayed

Hover a source tag to verify

Overview

ManufacturerJohn DeereReference
Wheel LoaderReference
Four-wheel driveReference
Final drivesinboard planetaryReference
Articulated power steeringReference
Hydraulic wet disc brakesReference
Four-post ROPS canopy. Cab available with optional air-conditioning.Reference

Engine

John Deere 7.6L 6-cyl dieselReference
Fuel tank283.9 LReference
Engine (gross)132.7 kWReference
Engine (net)126.8 kWReference
John Deere 6076AReference
turbocharged aftercooled dieselReference
6-cylinderReference
liquid-cooledReference
Displacement7.6 LReference
Bore/Stroke116 x 121 mmReference
Power (net)126.8 kWReference
Power (gross)132.7 kWReference
Air cleanerdryReference
Rated RPM2200Reference
Torque810.9 NmReference
Torque RPM1300Reference
StarterelectricReference
Starter volts12Reference
Oil capacity23.7 LReference
Coolant capacity2839.2 LReference

Transmission

4-speed power shiftReference
Typepower shiftReference
Gears4 forward and 3 reverseReference

PTO & Hydraulics

Typeopen centerReference
Pressure206.8 barReference
Pump flow263.1 lpmReference

Dimensions

Wheelbase320 cmReference
Weight15983 kgReference
Front tire20.5-25Reference
Rear tire20.5-25Reference
Industrial front20.5-25Reference
Industrial rear20.5-25Reference
Industrial front23.5-25Reference
Industrial rear23.5-25Reference
Length788 cmReference
Width273 cmReference
Height (cab)342 cmReference
Height (exhaust)315 cmReference
Operating weight15983 kgReference
Front tread216 cmReference
Rear tread216 cmReference

John Deere 644G attachments

front-end loaderReference

Electrical

GroundnegativeReference
Charging systemalternatorReference
Battery volts12Reference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

Partner tool · Free
Working out if you can afford this tractor?
YourIncomeCalculator.com — free, HMRC-aligned take-home pay, self-employment & VAT calculators. No sign-up.
Calculate your take-home pay
Recommended kit

Handy kit for owners

Popular tractor and farm accessories owners pick up for machines like this.

Disclosure: some links on this page are affiliate links. If you buy through them we may earn a small commission — at no extra cost to you. Learn more.

Compare the John Deere 644G head-to-head

Similar industrial tractors

Comparing 0
Compare (pick 2+)