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Allis Chalmers S vs Allis Chalmers WS
Verdict: Allis Chalmers S vs Allis Chalmers WS
The Allis Chalmers S and the Allis Chalmers WS are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 84 hp. Allis Chalmers S is the lighter machine (9,117 kg vs 9,142 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers WS is the newer design (1950 vs 1937). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.
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Fit & specs
Allis Chalmers
62
Fit score
Best match
Clear
Allis Chalmers
62
Fit score
Best match
Clear
Rated power
84 hp
84 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
Allis ChalmersReference
Allis ChalmersReference
PTO performanceReference
Gear 1 used for pull test.Reference
Total built
1,225Reference
—
Drive
crawlerReference
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Variants
S
gasolineReference
gasolineReference
SO
spark-ignition dieselReference
spark-ignition dieselReference
WS
wideReference
wideReference
Engine
Fuel tank
242.2 LReference
242.2 LReference
Drawbar (claimed)
35.8 kWReference
—
Belt (claimed)
49.2 kWReference
—
Drawbar (tested)
51.4 kWReference
51.3 kWReference
Belt (tested)
55.8 kWReference
62.9 kWReference
Displacement
11.1 LReference
11.1 LReference
Bore/Stroke
146 x 165 mmReference
146 x 165 mmReference
Fuel system
mechancal injectionReference
Zenith 62A-12 carburetorReference
Air cleaner
oil bathReference
oil bathReference
Compression
5:1Reference
5:1Reference
Rated RPM
1050Reference
1050Reference
Starter volts
6Reference
12Reference
Coolant capacity
47.3 LReference
47.3 LReference
Oil capacity
21.8 LReference
—
Belt power (max)
55.8 kWReference
62.9 kWReference
Max power
51.4 kWReference
51.3 kWReference
Transmission
Type
gearReference
gearReference
Gears
5 forward and 1 reverseReference
5 forward and 1 reverseReference
Clutch
dry discReference
dry discReference
PTO & Hydraulics
PTO (tested)
62.9 kWReference
—
PTO (claimed)
—
62.6 kWReference
Dimensions
Weight
9117 kgReference
9142 kgReference
Length
370 cmReference
—
Height
187 cmReference
—
Gauge
157 cmReference
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S Serial Numbers
1937
3Reference
—
1938
413Reference
—
1939
585Reference
—
1940
1085Reference
—
1941
1128Reference
—
1942
1212Reference
—
Location:
transmission case or instrument panelReference
—
Last
1227Reference
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Allis Chalmers S Tracks
Width
246 cmReference
—
Length on ground
195 cmReference
—
Area on ground
1.8 m²Reference
—
Ground pressure
0.5 barReference
—
Test results
Belt fuel use (max)
22.7 l/hourReference
31.0 l/hourReference
Max pull
5156 kgReference
8093 kgReference
Fuel use
31.0 l/hourReference
—
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.