Compare/Allis Chalmers A vs Allis Chalmers K

Allis Chalmers A vs Allis Chalmers K

Verdict: Allis Chalmers A vs Allis Chalmers K

The Allis Chalmers A and the Allis Chalmers K are both tractors — here is how they stack up on the figures that matter. Allis Chalmers K leads on rated power with 36 hp against 33 hp. Allis Chalmers A is the lighter machine (3,254 kg vs 5,216 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers A is the newer design (1936 vs 1929). In short: choose the Allis Chalmers K for outright pulling power, or the Allis Chalmers A if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Acreage600 acBudgetMain crop / use

Fit & specs

Allis Chalmers

Fit score

Best match

Clear

Allis Chalmers

Fit score

Best match

Clear

Rated power

33 hp

36 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Allis ChalmersReference

distillateReference

The four-speed transmission was introduced in 1935 at tractor serial number 4451.Reference

Total built

1,225Reference

9,468Reference

Drive

—

crawlerReference

Engine

Aux. fuel

5.7 LReference

—

Drawbar (claimed)

29.6 kWReference

26.5 kWReference

Belt (claimed)

38.2 kWReference

36.8 kWReference

Plows

4 (14 inch)Reference

—

Displacement

8.4 LReference

Bore/Stroke

127 x 165 mmReference

Compression

4.4:1Reference

5.2:1Reference

Fuel tank

—

147.6 LReference

Drawbar (tested)

—

40.0 kWReference

Belt (tested)

—

46.4 kWReference

Air cleaner

—

oil bathReference

Rated RPM

—

1050Reference

Coolant capacity

—

41.6 LReference

Belt power (max)

—

46.4 kWReference

Max power

—

40.0 kWReference

Transmission

Type

non-synchronized gearReference

gearReference

Gears

4 forward and 1 reverseReference

Oil capacity

—

20.8 LReference

Dimensions

Weight

3254 kgReference

5216 kgReference

Rear tire

48x12.1Reference

—

Ag rear

48x12.1 (steel)Reference

—

Length

355 cmReference

314 cmReference

Height

167 cmReference

—

K Width

—

167 cmReference

Height (hood)

—

162 cmReference

K Gauge

—

121 cmReference

WK Gauge

—

160 cmReference

A Serial Numbers

1936

25701Reference

4793Reference

1937

25726Reference

—

1938

26305Reference

—

1939

26614Reference

—

1940

26782Reference

—

1941

26896Reference

—

1942

26915Reference

—

Final

26925Reference

—

Capacities

Diameter

33 cmReference

—

Width

160 cmReference

38 cmReference

RPM

1000Reference

—

Speed

963.17 meters/minReference

—

Variants

—

gasolineReference

—

wide gasReference

—

dieselReference

WKO

—

wide dieselReference

K Serial Numbers

1929

—

1Reference

1930

—

49Reference

1931

—

1373Reference

1932

—

2334Reference

1933

—

2654Reference

1934

—

3046Reference

1935

—

3594Reference

Location:

—

Serial number on the transmission case or instrument panelReference

Allis Chalmers K Tracks

Length on ground

—

170 cmReference

Area on ground

—

1.3 m²Reference

Ground pressure

—

0.4 barReference

Test results

Belt fuel use (max)

—

23.5 l/hourReference

Max pull

—

5345 kgReference

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.