Search
J.I. Case 830 vs J.I. Case 840
Verdict: J.I. Case 830 vs J.I. Case 840
The J.I. Case 830 and the J.I. Case 840 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 66 hp. J.I. Case 840 is the lighter machine (5,481 kg vs 5,694 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. 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
Fit & specs
J.I. Case
62
Fit score
Best match
Clear
J.I. Case
62
Fit score
Best match
Clear
Rated power
66 hp
66 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
J.I. CaseReference
J.I. CaseReference
liquid-cooledReference
liquid-cooledReference
Steering
power assistReference
power assistReference
Original price
—
$5,500 (1969)Reference
Variants
830
diesel standard-frontReference
diesel standard-frontReference
831
diesel row-cropReference
diesel row-cropReference
832
diesel Western SpecialReference
diesel Western SpecialReference
833
diesel high-cropReference
diesel high-cropReference
840
gas standard-frontReference
gas standard-frontReference
841
gas row-cropReference
gas row-cropReference
842
gas Western SpecialReference
gas Western SpecialReference
843
gas high-cropReference
gas high-cropReference
Engine
Belt (claimed)
49.2 kWReference
49.2 kWReference
Plows
5Reference
5Reference
Displacement
4.9 LReference
4.7 LReference
Bore/Stroke
111 x 127 mmReference
108 x 127 mmReference
Air cleaner
oil bathReference
oil bathReference
Compression
15:1Reference
7.5:1Reference
Rated RPM
1900 (Case-O-Matic)Reference
1900 (Case-O-Matic)Reference
Firing order
1-3-4-2Reference
—
Starter volts
12Reference
12Reference
Oil capacity
64.4 LReference
64.4 LReference
Coolant capacity
28.0 LReference
—
Fuel tank
—
83.3 LReference
Transmission
Transmission
Case-O-MaticReference
Case-O-MaticReference
Gears
8 forward and 2 reverseReference
8 forward and 2 reverseReference
Clutch
wet discReference
wet discReference
Capacities
Fuel
83.3 LReference
—
Diameter
26 cmReference
26 cmReference
Width
169 cmReference
169 cmReference
RPM
1261 (Case-O-Matic 1000)Reference
1261 (Case-O-Matic 1000)Reference
PTO & Hydraulics
Hydraulic system
64.3 LReference
—
Type
torque converterReference
torque converterReference
Capacity
64.3 LReference
—
Pressure
106.9 barReference
—
Rear Type
IIReference
IIReference
Control
Draft-o-matic load/depth controlReference
Draft-o-matic load/depth controlReference
Rear PTO
independentReference
independentReference
Rear PTO Type
540/1000 (1.375)Reference
540/1000 (1.375)Reference
Dimensions
Wheelbase
210 cmReference
210 cmReference
Weight
2647 kgReference
2551 kgReference
Front tire
6.00-16Reference
6.00-16Reference
Rear tire
13-30Reference
13-30Reference
Ag front
6.00-16Reference
6.00-16Reference
Ag rear
13-30Reference
13-30Reference
Length
339 cmReference
339 cmReference
Height (hood)
155 cmReference
155 cmReference
Front tread
132/139/147 cmReference
132/139/147 cmReference
Rear tread
132 to 162 cmReference
132 to 162 cmReference
J.I. Case 830 attachments
830 Serial Numbers
1960
8160001Reference
8160001Reference
1961
8168801Reference
8168801Reference
1962
8190001Reference
8190001Reference
1963
8208001Reference
9208001Reference
1964
8229001Reference
8229001Reference
1965
8253501Reference
8253501Reference
1966
8279001Reference
8279001Reference
1967
8306501Reference
8306501Reference
1968
8332101Reference
8332101Reference
1969
8356251Reference
8356251Reference
Location:
Plate on instrument panelReference
Plate on instrument panelReference
Electrical
Ground
negativeReference
—
Charging system
generatorReference
generatorReference
Batteries
2Reference
2Reference
Battery volts
6Reference
6Reference
J.I. Case 840 attachments
840 Serial Numbers
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.