Compare/Allis Chalmers A vs Allis Chalmers HD3

Allis Chalmers A vs Allis Chalmers HD3

Verdict: Allis Chalmers A vs Allis Chalmers HD3

The Allis Chalmers A and the Allis Chalmers HD3 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 33 hp. Allis Chalmers A is the lighter machine (3,254 kg vs 3,467 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers HD3 is the newer design (1960 vs 1936). 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

Best match

Clear

Allis Chalmers

Fit score

Best match

Clear

Rated power

33 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Allis ChalmersReference

distillateReference

Four gears (1-4) plus reverse (R) with two-speed high/low power shift.Reference

Total built

1,225Reference

—

Drive

—

crawlerReference

Steering

—

mechanical clutchesReference

Engine

Aux. fuel

5.7 LReference

—

Drawbar (claimed)

29.6 kWReference

—

Belt (claimed)

38.2 kWReference

—

Plows

4 (14 inch)Reference

—

Displacement

8.4 LReference

2.9 LReference

Bore/Stroke

127 x 165 mmReference

90 x 111 mmReference

Compression

4.4:1Reference

—

Drawbar (tested)

—

19.5 kWReference

Fuel system

—

Roosa-Master injection pumpReference

Air cleaner

—

oil bathReference

Rated RPM

—

1650Reference

Starter

—

electricReference

Starter volts

—

12Reference

Coolant capacity

—

8.5 LReference

Power at rated engine speed

—

24.3 kWReference

Max power

—

19.5 kWReference

Transmission

Type

non-synchronized gearReference

mechanical shuttleReference

Gears

4 forward and 1 reverseReference

4 forward and reverseReference

Transmission

—

Power DirectorReference

Clutch

—

dry disc (gear)Reference

Dimensions

Weight

3254 kgReference

1279 kgReference

Rear tire

48x12.1Reference

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Ag rear

48x12.1 (steel)Reference

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Length

355 cmReference

276 cmReference

Height

167 cmReference

—

Height (hood)

—

122 cmReference

Height (exhaust)

—

182 cmReference

Gauge

—

121 cmReference

A Serial Numbers

1936

25701Reference

—

1937

25726Reference

—

1938

26305Reference

—

1939

26614Reference

—

1940

26782Reference

—

1941

26896Reference

—

1942

26915Reference

—

Final

26925Reference

9949Reference

Capacities

Diameter

33 cmReference

—

Width

160 cmReference

45 cmReference

RPM

1000Reference

—

Speed

963.17 meters/minReference

—

Fuel

—

53.0 LReference

Variants

—

gas engineReference

HD3

—

diesel engineReference

PTO & Hydraulics

PTO (tested)

—

24.3 kWReference

Hydraulic system

—

62.5 LReference

Capacity

—

62.5 LReference

Valves

—

1 to 3Reference

Pump flow

—

94.6 lpmReference

Rear PTO

—

optionalReference

Rear PTO Type

—

540Reference

Allis Chalmers HD3 attachments

HD3 Serial Numbers

1960

—

1001Reference

1961

—

1250Reference

1962

—

3199Reference

1963

—

6001Reference

1964

—

6945Reference

1965

—

7890Reference

1966

—

8856Reference

1967

—

9483Reference

1968

—

9700Reference

Attachment overview

Allis-Chalmers Mark V Backhoe

Backhoe type

—

Allis-Chalmers Mark V BackhoeReference

Transport height

—

342 cmReference

Digging depth

—

411 cmReference

Reach from pivot

—

477 cmReference

Loading height

—

309 cmReference

Swing Arc

—

200°Reference

Allis Chalmers HD3 Tracks

Test results

Fuel use

—

9.8 l/hourReference

Max pull

—

3722 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.