Compare/J.I. Case 644 vs J.I. Case VI
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J.I. Case 644 vs J.I. Case VI

Verdict: J.I. Case 644 vs J.I. Case VI

The J.I. Case 644 and the J.I. Case VI are both industrial tractors — here is how they stack up on the figures that matter. J.I. Case VI leads on rated power with 24 hp against 14 hp. J.I. Case 644 is the lighter machine (512 kg vs 1,950 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. J.I. Case 644 is the newer design (1972 vs 1940). In short: choose the J.I. Case VI for outright pulling power, or the J.I. Case 644 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
J.I. Case 644 Industrial Tractor
J.I. Case
62
Fit score
Best match
Clear
J.I. Case VI Industrial Tractor
J.I. Case
62
Fit score
Best match
Clear
Rated power
14 hp
24 hp
Confidence
40%
40%
Guide price
Overview
Manufacturer
J.I. CaseReference
J.I. CaseReference
air-cooled horizontal-shaftReference
liquid-cooledReference
Total built
734Reference
Steering
manualReference
Engine
Engine
10.4 kWReference
Displacement
0.5 LReference
2.0 LReference
Bore/Stroke
89 x 83 mmReference
76 x 111 mmReference
Power
10.4 kWReference
Compression
6:1Reference
Rated RPM
3600Reference
1425Reference
Starter
electricReference
Starter volts
12Reference
Sparkplug gap
0.635 mmReference
Point gap
0.508 mmReference
Intake valve clearance
0.254 mmReference
Exhaust valve clearance
0.508 mmReference
Oil capacity
1.4 LReference
Oil change
25 hReference
Fuel tank
37.9 LReference
Plows
2Reference
Air cleaner
oil bathReference
Starter type
electric (optional)Reference
Sparkplug
AC 75Reference
Transmission
Transmission
Hy-DriveReference
Gears
infinite forward and reverse (2-range)Reference
4 forward and 1 reverseReference
Capacities
Fuel
18.9 LReference
Diameter
26 cmReference
RPM
969Reference
Speed
792.48 meters/minReference
PTO & Hydraulics
Hydraulic system
11.4 LReference
Type
hydraulic driveReference
gearReference
Capacity
11.4 LReference
Pressure
158.6 barReference
Pump flow
34.1 lpmReference
Rear Type
0Reference
PTO (claimed)
17.9 kWReference
Rear PTO Type
540 (1.125)Reference
Dimensions
Wheelbase
121 cmReference
Weight
512 kgReference
1950 kgReference
Front tire
5.70-8Reference
Rear tire
27x8.50-15Reference
Industrial front
5.70-8Reference
Industrial rear
27x8.50-15Reference
Length
274 cmReference
Width
104 cmReference
16 cmReference
Height (steering wheel)
109 cmReference
Ground clearance
20 cmReference
Front tread
75 cmReference
Rear tread
82 cmReference
Ag front
5.00-15Reference
Ag rear
9-32Reference
J.I. Case 644 attachments
644 Serial Numbers
Location:
Serial number plate on left side of tractor, just ahead of steering column.Reference
Electrical
Ground
negativeReference
Charging system
flywheel alternatorReference
Charging volts
12Reference
Battery volts
12Reference
Battery AH
32Reference
Attachment overview
Variants
V
standardReference
VC
row-cropReference
VO
orchardReference
VI
industrialReference
VI Serial Numbers
1940
VI4400001Reference
1941
VI4500001Reference
1942
VI4600001Reference

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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