Compare/Allis Chalmers 25-40 E vs Allis Chalmers CA

Allis Chalmers 25-40 E vs Allis Chalmers CA

Verdict: Allis Chalmers 25-40 E vs Allis Chalmers CA

The Allis Chalmers 25-40 E and the Allis Chalmers CA are both tractors — here is how they stack up on the figures that matter. Allis Chalmers 25-40 E leads on rated power with 25 hp against 23 hp. Allis Chalmers CA is the lighter machine (1,285 kg vs 3,175 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers CA is the newer design (1950 vs 1930). In short: choose the Allis Chalmers 25-40 E for outright pulling power, or the Allis Chalmers CA if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

Allis Chalmers

Fit score

Best match

Clear

Allis Chalmers

Fit score

Best match

Clear

Rated power

25 hp

23 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Allis ChalmersReference

Gear 1 used for pull test.Reference

Total built

1,426Reference

39,499Reference

Engine

Fuel tank

113.6 LReference

—

Aux. fuel

3.8 LReference

—

Drawbar (claimed)

18.6 kWReference

13.4 kWReference

Belt (claimed)

29.8 kWReference

—

Drawbar (tested)

25.2 kWReference

17.1 kWReference

Belt (tested)

35.0 kWReference

19.4 kWReference

Displacement

9.2 LReference

2.1 LReference

Bore/Stroke

133 x 165 mmReference

86 x 89 mmReference

Rated RPM

1000Reference

1650Reference

Coolant capacity

37.9 LReference

8.5 LReference

Belt power (max)

35.0 kWReference

19.4 kWReference

Max power

25.2 kWReference

17.1 kWReference

Air cleaner

—

oil bathReference

Compression

—

6.25:1Reference

Firing order

—

1-2-4-3Reference

Starter volts

—

6Reference

Sparkplug

—

Champion J-8Reference

Sparkplug gap

—

0.762 mmReference

Point gap

—

0.508 mmReference

Intake valve clearance

—

0.305 mmReference

Exhaust valve clearance

—

0.305 mmReference

Transmission

Type

gearReference

non-synchronizedReference

Gears

2 forward and 1 reverseReference

4 forward and 1 reverseReference

Clutch

—

dry discReference

Oil capacity

—

3.8 LReference

Dimensions

Weight

3175 kgReference

1285 kgReference

Front tire

36x6Reference

5.00-15Reference

Rear tire

50x12Reference

10-24Reference

Ag front

36x6 steelReference

5.00-15Reference

Ag rear

50x12 steelReference

10-24Reference

Length

386 cmReference

317 cmReference

Width

193 cmReference

13 cmReference

Height

165 cmReference

185 cmReference

Wheelbase

—

208 cmReference

Operating weight

—

1285 kgReference

Ballasted weight

—

2288 kgReference

Front tread

—

15/33 cmReference

Rear tread

—

132 to 203 cmReference

25-40 Serial Numbers

1930

24186Reference

—

1931

24843Reference

—

1932

24972Reference

—

1933

25024Reference

—

1934

25062Reference

—

1935

25309Reference

—

1936

25582Reference

—

Location:

front of shifter on transmission caseReference

On top of transmission, by shift leverReference

Final

25611Reference

39513Reference

Test results

Belt fuel use (max)

20.8 l/hourReference

9.1 l/hourReference

Max pull

1874 kgReference

1613 kgReference

PTO & Hydraulics

PTO (claimed)

—

17.2 kWReference

Hydraulic system

—

7.6 LReference

Capacity

—

7.6 LReference

Pressure

—

220.6 barReference

Rear PTO

—

liveReference

Rear PTO Type

—

538Reference

Capacities

Fuel

—

49.2 LReference

Diameter

—

20 cmReference

RPM

—

1220Reference

Speed

—

778.76 meters/minReference

CA Serial Numbers

1950

—

14Reference

1951

—

322Reference

1952

—

10539Reference

1953

—

22181Reference

1954

—

31424Reference

1955

—

32907Reference

1956

—

37203Reference

1957

—

38618Reference

1958

—

38977Reference

Electrical

Ground

—

positiveReference

Charging system

—

generatorReference

Charging amps

—

10Reference

Battery volts

—

6Reference

Battery AH

—

95Reference

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.