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Caterpillar Forty vs Caterpillar R5
Verdict: Caterpillar Forty vs Caterpillar R5
The Caterpillar Forty and the Caterpillar R5 are both tractors — here is how they stack up on the figures that matter. Caterpillar R5 leads on rated power with 50 hp against 49 hp. Caterpillar Forty is the lighter machine (6,180 kg vs 6,202 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. In short: choose the Caterpillar R5 for outright pulling power, or the Caterpillar Forty 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
49 hp
50 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
CaterpillarReference
CaterpillarReference
Gasoline (1000 RPM) 4-speed crawlerSeptember 18 - 23, 1935Link: Nebraska Tractor Test 245 fileReference
Gear 1 used for pull test.Reference
Drive
crawlerReference
crawlerReference
Variants
Forty
gas engineReference
—
Diesel Forty
diesel engineReference
—
Engine
Drawbar (tested)
36.5 kWReference
36.9 kWReference
Belt (tested)
42.1 kWReference
43.9 kWReference
Displacement
8.0 LReference
10.1 LReference
Bore/Stroke
130 x 165 mmReference
140 x 165 mmReference
Rated RPM
850Reference
950Reference
Belt power (max)
42.1 kWReference
43.9 kWReference
Max power
36.5 kWReference
36.9 kWReference
Fuel tank
—
189.2 LReference
Drawbar (claimed)
—
37.3 kWReference
Belt (claimed)
—
43.3 kWReference
Oil capacity
—
18.9 LReference
Coolant capacity
—
35.0 LReference
Transmission
Type
gearReference
gearReference
Gears
4 forward and 1 reverseReference
4 forward and 1 reverseReference
Clutch
—
dry discReference
Dimensions
Weight
6180 kgReference
6202 kgReference
Gauge
142 cmReference
142 cmReference
Length
—
354 cmReference
Height
—
176 cmReference
Ground clearance
—
24 cmReference
Forty Serial Numbers
1934
5G1Reference
5E3001Reference
1935
5G43Reference
5E3086Reference
1936
5G434Reference
4H1132Reference
Final
5G584Reference
—
Caterpillar Forty Tracks
Width
40 cmReference
184 cmReference
Test results
Belt fuel use (max)
26.1 l/hourReference
—
Max pull
4293 kgReference
4914 kgReference
R5 Serial Numbers
1938
—
4H936Reference
1940
—
3R1Reference
Capacities
Diameter
—
30 cmReference
RPM
—
950Reference
Caterpillar R5 Tracks
Length on ground
—
181 cmReference
Area on ground
—
1.5 m²Reference
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.