Compare/J.I. Case 620 vs J.I. Case 644

J.I. Case 620 vs J.I. Case 644

Verdict: J.I. Case 620 vs J.I. Case 644

The J.I. Case 620 and the J.I. Case 644 are both industrial tractors — here is how they stack up on the figures that matter. J.I. Case 644 is the newer design (1972 vs 1957). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

J.I. Case

Fit score

Best match

Clear

J.I. Case

Fit score

Clear

Rated power

null hp

14 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

J.I. CaseReference

liquid-cooledReference

air-cooled horizontal-shaftReference

Total built

90Reference

—

Steering

power assistReference

—

Variants

600

dieselReference

—

610

LP-gasReference

—

620

industrialReference

—

Engine

Displacement

6.2 LReference

0.5 LReference

Bore/Stroke

102 x 127 mmReference

89 x 83 mmReference

Air cleaner

oil bathReference

—

Rated RPM

1500Reference

3600Reference

Starter type

electricReference

—

Engine

—

10.4 kWReference

Power

—

10.4 kWReference

Compression

—

6:1Reference

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

Transmission

Type

gearReference

hydraulic driveReference

Gears

6 forward and 1 reverseReference

infinite forward and reverse (2-range)Reference

Transmission

—

Hy-DriveReference

PTO & Hydraulics

Rear PTO Type

540Reference

—

Hydraulic system

—

11.4 LReference

Capacity

—

11.4 LReference

Pressure

—

158.6 barReference

Pump flow

—

34.1 lpmReference

Rear Type

—

0Reference

Capacities

Fuel

—

18.9 LReference

Dimensions

Wheelbase

—

121 cmReference

Weight

—

512 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

Height (steering wheel)

—

109 cmReference

Ground clearance

—

20 cmReference

Front tread

—

75 cmReference

Rear tread

—

82 cmReference

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

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.