Compare/Allis Chalmers HD3 vs Allis Chalmers K

Allis Chalmers HD3 vs Allis Chalmers K

Verdict: Allis Chalmers HD3 vs Allis Chalmers K

The Allis Chalmers HD3 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 HD3 is the lighter machine (3,467 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 HD3 is the newer design (1960 vs 1929). In short: choose the Allis Chalmers K for outright pulling power, or the Allis Chalmers HD3 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

33 hp

36 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Allis ChalmersReference

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

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

Drive

crawlerReference

Steering

mechanical clutchesReference

—

Total built

—

9,468Reference

Variants

gas engineReference

—

HD3

diesel engineReference

—

gasolineReference

—

wide gasReference

—

dieselReference

WKO

—

wide dieselReference

Engine

Drawbar (tested)

19.5 kWReference

40.0 kWReference

Displacement

2.9 LReference

8.4 LReference

Bore/Stroke

90 x 111 mmReference

127 x 165 mmReference

Fuel system

Roosa-Master injection pumpReference

—

Air cleaner

oil bathReference

Rated RPM

1650Reference

1050Reference

Starter

electricReference

—

Starter volts

12Reference

—

Coolant capacity

8.5 LReference

41.6 LReference

Power at rated engine speed

24.3 kWReference

—

Max power

19.5 kWReference

40.0 kWReference

Fuel tank

—

147.6 LReference

Drawbar (claimed)

—

26.5 kWReference

Belt (claimed)

—

36.8 kWReference

Belt (tested)

—

46.4 kWReference

Compression

—

5.2:1Reference

Belt power (max)

—

46.4 kWReference

Transmission

Power DirectorReference

—

Gears

4 forward and reverseReference

4 forward and 1 reverseReference

Clutch

dry disc (gear)Reference

—

Oil capacity

—

20.8 LReference

PTO & Hydraulics

PTO (tested)

24.3 kWReference

—

Hydraulic system

62.5 LReference

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Type

mechanical shuttleReference

gearReference

Capacity

62.5 LReference

—

Valves

1 to 3Reference

—

Pump flow

94.6 lpmReference

—

Rear PTO

optionalReference

—

Rear PTO Type

540Reference

—

Capacities

Fuel

53.0 LReference

—

Dimensions

Weight

1279 kgReference

5216 kgReference

Length

276 cmReference

314 cmReference

Height (hood)

122 cmReference

162 cmReference

Height (exhaust)

182 cmReference

—

Gauge

121 cmReference

—

K Width

—

167 cmReference

K Gauge

—

121 cmReference

WK Gauge

—

160 cmReference

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

—

Final

9949Reference

—

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

Width

45 cmReference

38 cmReference

Test results

Fuel use

9.8 l/hourReference

—

Max pull

3722 kgReference

5345 kgReference

Belt fuel use (max)

—

23.5 l/hourReference

K Serial Numbers

1929

—

1Reference

1930

—

49Reference

1931

—

1373Reference

1932

—

2334Reference

1933

—

2654Reference

1934

—

3046Reference

1935

—

3594Reference

1936

—

4793Reference

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

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.