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Allis Chalmers IB vs Allis Chalmers W Speed Patrol
Verdict: Allis Chalmers IB vs Allis Chalmers W Speed Patrol
The Allis Chalmers IB and the Allis Chalmers W Speed Patrol are both industrial tractors — here is how they stack up on the figures that matter. Allis Chalmers W Speed Patrol is the newer design (1940 vs 1939). 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
Clear
Allis Chalmers
79
Fit score
Best match
Clear
Rated power
23 hp
null hp
Confidence
40%
40%
Guide price
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Overview
Manufacturer
Allis ChalmersReference
Allis ChalmersReference
Second engine, used until 1943, SN 64500Reference
liquid-cooledReference
Total built
2,850Reference
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Steering
manualReference
manualReference
Factories
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Springfield, Illinois, USAReference
Variants
B
farm tractorReference
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WC
—
farm tractorReference
Engine
Belt (claimed)
17.1 kWReference
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Displacement
1.9 LReference
3.3 LReference
Bore/Stroke
83 x 89 mmReference
102 x 102 mmReference
Air cleaner
oil bathReference
—
Compression
5.75:1Reference
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Rated RPM
1400Reference
1300Reference
Firing order
1-2-4-3Reference
1-2-4-3Reference
Starter volts
6Reference
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Oil capacity
5.7 LReference
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Sparkplug gap
0.762 mmReference
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Point gap
0.508 mmReference
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Intake valve clearance
0.254 mmReference
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Exhaust valve clearance
0.254 mmReference
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Coolant capacity
7.6 LReference
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Transmission
Type
non-synchronized gearReference
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Gears
3 forward and 1 reverseReference
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Clutch
dryReference
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Oil type
[0oC]Reference
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32oF [0oC]↑
: SAE140Reference
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32oF [0oC]↓
: SAE90Reference
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IB Serial Numbers
1938
97Reference
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1939
11800Reference
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1940
33502Reference
IE1Reference
1941
49721Reference
IE467Reference
1942
56782Reference
IE635Reference
1943
64501Reference
-----Reference
1944
65502Reference
-----Reference
1945
70210Reference
IE681Reference
1946
IB1001Reference
IF820Reference
1947
IB1003Reference
IF1438Reference
1948
IB1010Reference
IE2279Reference
1949
IB1282Reference
IE3516Reference
1950
IB1556Reference
IE3547Reference
1951
IB1879Reference
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1952
IB2219Reference
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1953
IB2570Reference
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Location:
Serial number stamped behind the gear shift lever, on top of the transmission case.Reference
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Electrical
Charging system
generatorReference
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Battery volts
6Reference
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W Speed Patrol Serial Numbers
Final
—
IE3753Reference
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.