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Caterpillar D4 vs Caterpillar Thirty
Verdict: Caterpillar D4 vs Caterpillar Thirty
The Caterpillar D4 and the Caterpillar Thirty are both tractors — here is how they stack up on the figures that matter. Caterpillar D4 leads on rated power with 35 hp against 31 hp. Caterpillar Thirty holds more fuel (141.9 L vs 75.7 L) for longer stints between fills. Caterpillar D4 is the newer design (1938 vs 1925). In short: choose the Caterpillar D4 for outright pulling power, or the Caterpillar Thirty 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
Caterpillar
62
Fit score
Best match
Clear
Caterpillar
62
Fit score
Best match
Clear
Rated power
35 hp
31 hp
Confidence
40%
40%
Guide price
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Overview
Manufacturer
CaterpillarReference
CaterpillarReference
Gear 1 used for pull test.Reference
Gear 1 used for pull test.Reference
Drive
crawlerReference
crawlerReference
Steering
manual clutchesReference
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Factories
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Peoria, Illinois, USAReference
Engine
Fuel tank
75.7 LReference
141.9 LReference
Drawbar (tested)
26.1 kWReference
23.0 kWReference
Belt (tested)
29.7 kWReference
27.1 kWReference
Displacement
5.1 LReference
7.6 LReference
Bore/Stroke
108 x 140 mmReference
121 x 165 mmReference
Air cleaner
oil bathReference
oil bathReference
Compression
17.3:1Reference
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Rated RPM
1400Reference
1400Reference
Torque
570.9 NmReference
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Torque RPM
1000Reference
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Oil capacity
18.9 LReference
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Coolant capacity
41.6 LReference
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Belt power (max)
29.7 kWReference
27.1 kWReference
Max power
26.1 kWReference
23.0 kWReference
Aux. fuel
—
9.8 LReference
Fuel system
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Zenith K5A carburetorReference
Transmission
Type
gearReference
gearReference
Gears
5 forward and 1 reverseReference
5 forward and 1 reverseReference
Clutch
dry discReference
dry discReference
Dimensions
Wheelbase
155 cmReference
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Weight
4649 kgReference
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Length
306 cmReference
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Height (hood)
153 cmReference
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Ground clearance
28 cmReference
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Clearance (drawbar)
36 cmReference
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Gauge
152 cmReference
154 cmReference
D4 Serial Numbers
1936
4G1Reference
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1937
4G3663Reference
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1938
4G8858Reference
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1939
7J1Reference
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1940
7J1758Reference
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1941
7J4119Reference
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1942
7J7544Reference
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1943
2T1Reference
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1944
2T3306Reference
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1945
5T1Reference
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1946
5T3524Reference
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1947
5T6780Reference
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Location:
Serial number plate on the rear of the tractor, upper-left of the transmission case.Reference
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Links
Caterpillar D4 Tracks
Width
198 cmReference
76 cmReference
Test results
Belt fuel use (max)
11.0 l/hourReference
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Max pull
3561 kgReference
2776 kgReference
Capacities
Diameter
—
30 cmReference
RPM
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840Reference
Caterpillar Thirty Tracks
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.


