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John Deere 644G vs John Deere 844

Verdict: John Deere 644G vs John Deere 844

The John Deere 644G and the John Deere 844 are both industrial tractors — here is how they stack up on the figures that matter. John Deere 844 leads on rated power with 290 hp against 178 hp. John Deere 644G is the lighter machine (15,983 kg vs 23,755 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. John Deere 844 holds more fuel (378.5 L vs 283.9 L) for longer stints between fills. John Deere 644G is the newer design (1992 vs 1978). In short: choose the John Deere 844 for outright pulling power, or the John Deere 644G if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Fit & specs
John Deere 644G Industrial Tractor
John Deere
94
Fit score
Best match
Clear
John Deere 844 Industrial Tractor
John Deere
71
Fit score
Clear
Rated power
178 hp
290 hp
Confidence
98%
98%
Guide price
Overview
Manufacturer
John DeereReference
John DeereReference
liquid-cooledReference
liquid-cooledReference
Final drives
inboard planetaryReference
Engine
Fuel tank
283.9 LReference
378.5 LReference
Engine (gross)
132.7 kWReference
216.3 kWReference
Engine (net)
126.8 kWReference
193.9 kWReference
Displacement
7.6 LReference
15.7 LReference
Bore/Stroke
116 x 121 mmReference
140 x 127 mmReference
Power (net)
126.8 kWReference
193.9 kWReference
Power (gross)
132.7 kWReference
216.3 kWReference
Air cleaner
dryReference
dryReference
Rated RPM
2200Reference
2100Reference
Torque
810.9 NmReference
1163.4 NmReference
Torque RPM
1300Reference
1300Reference
Starter
electricReference
electricReference
Starter volts
12Reference
24Reference
Oil capacity
23.7 LReference
38.8 LReference
Coolant capacity
2839.2 LReference
75.7 LReference
Transmission
Gears
4 forward and 3 reverseReference
4 forward and 3 reverseReference
PTO & Hydraulics
Type
power shiftReference
power shiftReference
Pressure
206.8 barReference
172.4 barReference
Pump flow
263.1 lpmReference
282.4 lpmReference
Total flow
579.9 lpmReference
Dimensions
Wheelbase
320 cmReference
320 cmReference
Weight
15983 kgReference
23755 kgReference
Front tire
20.5-25Reference
26.5-25Reference
Rear tire
20.5-25Reference
26.5-25Reference
Industrial front
23.5-25Reference
29.5-25Reference
Industrial rear
23.5-25Reference
29.5-25Reference
Length
788 cmReference
801 cmReference
Width
273 cmReference
Height (cab)
342 cmReference
356 cmReference
Height (exhaust)
315 cmReference
319 cmReference
Operating weight
15983 kgReference
23755 kgReference
Front tread
216 cmReference
228 cmReference
Rear tread
216 cmReference
228 cmReference
John Deere 644G attachments
Electrical
Ground
negativeReference
Charging system
alternatorReference
alternatorReference
Battery volts
12Reference
12Reference
Charging amps
70Reference
Batteries
2Reference
Battery CCA
625Reference
John Deere 844 attachments

Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.

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