John Deere 644A Engine


John Deere 644A industrial tractor photo
1971 - 1973
Wheel Loader
Series:644A
644B
Engine Detail
John Deere
turbocharged diesel
6-cylinder
liquid-cooled
Displacement404 ci
6.6 L
Bore/Stroke4.25x4.75 inches
108 x 121 mm
Power (gross)141 hp
105.1 kW
Compression16.5:1
Rated RPM2400
Torque345 lb-ft
467.8 Nm
Torque RPM1600
Starterelectric
Starter volts12
Oil capacity17 qts
16.1 L
Coolant capacity36 qts
34.1 L
Page information
Contact: Peter Easterlund
Updated on September 9, 2021
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