Compare/Allis Chalmers HD-6G vs Allis Chalmers HD-9G

Allis Chalmers HD-6G vs Allis Chalmers HD-9G

Verdict: Allis Chalmers HD-6G vs Allis Chalmers HD-9G

The Allis Chalmers HD-6G and the Allis Chalmers HD-9G are both industrial tractors — here is how they stack up on the figures that matter. Allis Chalmers HD-6G leads on rated power with 80 hp against 70 hp. Allis Chalmers HD-6G is the lighter machine (9,525 kg vs 13,335 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers HD-6G is the newer design (1956 vs 1951). In short: choose the Allis Chalmers HD-6G for outright pulling power, or the Allis Chalmers HD-9G if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a 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

80 hp

70 hp

Confidence

40%

Guide price

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Overview

Manufacturer

Allis ChalmersReference

liquid-cooledReference

liquid-cooled 2-cycle vertical I-headReference

Drive

crawlerReference

Variants

HD6A

44-inch gaugeReference

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HD6B

60-inch gaugeReference

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HD6E

5-rollerReference

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HD6G

loaderReference

—

HD6EP

power shiftReference

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HD6AG

turbochargedReference

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Engine

Engine (gross)

59.7 kWReference

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Engine (net)

53.7 kWReference

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Displacement

5.6 LReference

4.7 LReference

Bore/Stroke

113 x 141 mmReference

108 x 127 mmReference

Power (net)

53.7 kWReference

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Power (gross)

59.7 kWReference

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Rated RPM

1800Reference

1600Reference

Starter

electricReference

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Starter volts

24Reference

12Reference

Oil capacity

18.9 LReference

25.6 LReference

Coolant capacity

31.2 LReference

27.4 LReference

Fuel tank

—

208.2 LReference

Drawbar (claimed)

—

52.2 kWReference

Belt (claimed)

—

62.6 kWReference

Compression

—

16.0:1Reference

Transmission

Gears

4 forward and 2 reverseReference

6 forward and 3 reverseReference

Clutch

wet discReference

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Capacities

Fuel

151.4 LReference

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PTO & Hydraulics

Hydraulic system

102.2 LReference

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Type

gearReference

Capacity

102.2 LReference

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Pump flow

151.4 lpmReference

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Dimensions

Weight

9525 kgReference

13335 kgReference

Length

446 cmReference

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Height (steering wheel)

187 cmReference

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Height (exhaust)

200 cmReference

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Shipping weight

9525 kgReference

13335 kgReference

Ripper

703 kgReference

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Gauge

152 cmReference

187 cmReference

Allis Chalmers HD-6G attachments

Allis Chalmers HD-6G Tracks

Width

198 cmReference

50 cmReference

Length on ground

212 cmReference

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Area on ground

1.4 m²Reference

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Allis Chalmers HD-9G attachments

HD-9G Serial Numbers

Location:

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Steering clutch housing or instrument panelReference

Allis Chalmers HD-9G Tracks

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.