Compare/Allis Chalmers D-12 vs Allis Chalmers W Speed Patrol

Allis Chalmers D-12 vs Allis Chalmers W Speed Patrol

Verdict: Allis Chalmers D-12 vs Allis Chalmers W Speed Patrol

The Allis Chalmers D-12 and the Allis Chalmers W Speed Patrol are both industrial tractors — here is how they stack up on the figures that matter. Allis Chalmers D-12 is the newer design (1959 vs 1940). 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

Acreage600 acBudgetMain crop / use

Fit & specs

Allis Chalmers

Fit score

Clear

Allis Chalmers

Fit score

Best match

Clear

Rated power

39 hp

null hp

Confidence

40%

Guide price

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Overview

Manufacturer

Allis ChalmersReference

Allis D12 with 10x24 rear tires.Reference

liquid-cooledReference

Factories

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Springfield, Illinois, USAReference

Steering

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manualReference

Engine

Fuel tank

47.3 LReference

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Engine (net)

29.1 kWReference

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Drawbar (claimed)

22.8 kWReference

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Displacement

2.4 LReference

3.3 LReference

Bore/Stroke

89 x 98 mmReference

102 x 102 mmReference

Power (net)

29.1 kWReference

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Air cleaner

oil bathReference

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Compression

7.5:1Reference

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Rated RPM

1650Reference

1300Reference

Torque

185.8 NmReference

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Firing order

1-2-4-3Reference

Starter volts

12Reference

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Oil capacity

4.3 LReference

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Coolant capacity

7.6 LReference

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Transmission

Gears

4 forward and 1 reverseReference

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PTO & Hydraulics

PTO (claimed)

26.3 kWReference

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Type

sliding gearReference

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Pressure

103.4 barReference

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Valves

1 or 2Reference

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Pump flow

13.5 lpmReference

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Rear Type

IReference

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Rear PTO Type

540Reference

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Engine RPM

540@1650Reference

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Dimensions

Wheelbase

200 cmReference

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Weight

1136 kgReference

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Ag front

6.00x16Reference

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Ag rear

12.4x24Reference

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Length

307 cmReference

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Height (hood)

133 cmReference

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Height (exhaust)

194 cmReference

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Shipping weight

1451 kgReference

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Clearance (front axle)

53 cmReference

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Clearance (rear axle)

55 cmReference

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Front tread

125 to 203 cmReference

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Rear tread

132 to 201 cmReference

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Allis Chalmers D-12 attachments

Capacities

RPM

1220Reference

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Speed

779.07 meters/minReference

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Attachment overview

Allis-Chalmers Mark I Backhoe

Backhoe type

Allis-Chalmers Mark TEN BackhoeReference

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Transport height

322 cmReference

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Digging depth

304 cmReference

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Reach from pivot

426 cmReference

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Loading height

281 cmReference

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Swing Arc

200°Reference

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Allis-Chalmers Mark TEN Backhoe

Speeds

Variants

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farm tractorReference

W Speed Patrol Serial Numbers

1940

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IE1Reference

1941

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IE467Reference

1942

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IE635Reference

1943

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-----Reference

1944

—

-----Reference

1945

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IE681Reference

1946

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IF820Reference

1947

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IF1438Reference

1948

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IE2279Reference

1949

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IE3516Reference

1950

—

IE3547Reference

Final

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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.