John Deere 644A

John Deere 644A industrial tractor photo
1971 - 1973
Wheel Loader
ManufacturerJohn Deere
TypeWheel Loader
John Deere 644A Engine
John Deere 6.6L 6-cyl diesel
Fuel tank50 gal
189.3 L
Engine details ...
John Deere 644A Power
Engine (gross)141 hp
105.1 kW
Engine (net)131 hp
97.7 kW
Chassis4x4 articulated 4WD
Final drivesinboard planetary
Steeringarticulated power
Brakeshydraulic wet disc
CabCab standard with heat.
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Typeopen center
Pressure2250 psi
155.1 bar
Pump flow60 gpm
227.1 lpm
Steering flow27 gpm
102.2 lpm
Steering press.2000 psi
137.9 bar
Dimensions & Tires
Wheelbase104 inches
264 cm
Weight26472 lbs
12007 kg
Front tire20.5-25
Rear tire20.5-25
Full dimensions and tires ...
Charging systemalternator
Battery volts12
644A reference literature
Construction Purchasing Guide published in 1973, by John Deere
Page information
Contact: Peter Easterlund
Updated on September 9, 2021
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