Compare/Allis Chalmers HD-4 Loader vs Allis Chalmers I40

Allis Chalmers HD-4 Loader vs Allis Chalmers I40

Verdict: Allis Chalmers HD-4 Loader vs Allis Chalmers I40

The Allis Chalmers HD-4 Loader and the Allis Chalmers I40 are both industrial tractors — here is how they stack up on the figures that matter. Allis Chalmers HD-4 Loader leads on rated power with 52 hp against 41 hp. Allis Chalmers I40 is the lighter machine (3,980 kg vs 5,624 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers HD-4 Loader holds more fuel (68.1 L vs 47.3 L) for longer stints between fills. Allis Chalmers HD-4 Loader is the newer design (1966 vs 1964). In short: choose the Allis Chalmers HD-4 Loader for outright pulling power, or the Allis Chalmers I40 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

52 hp

41 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Allis ChalmersReference

liquid-cooledReference

With 14.9x24 rear tires.Reference

Drive

crawlerReference

—

Final drives

—

bull gearReference

Variants

HD-4

crawlerReference

—

HD-4 Loader

loader-crawlerReference

—

D10

—

ag tractorReference

Engine

Fuel tank

68.1 LReference

47.3 LReference

Engine (gross)

38.8 kWReference

30.3 kWReference

Displacement

3.3 LReference

2.4 LReference

Bore/Stroke

99 x 108 mmReference

89 x 98 mmReference

Power (gross)

38.8 kWReference

30.3 kWReference

Air cleaner

dryReference

—

Compression

16.25:1Reference

7.5:1Reference

Rated RPM

2100Reference

2000Reference

Torque

191.9 NmReference

183.1 NmReference

Torque RPM

1600Reference

1200Reference

Starter

electricReference

—

Starter volts

12Reference

Oil capacity

11.6 LReference

7.6 LReference

Coolant capacity

15.1 LReference

—

Firing order

—

1-2-4-3Reference

Transmission

Type

torque converterReference

shuttleReference

Gears

3 forward and reverseReference

8 forward and 2 reverseReference

Clutch

hydraulic discReference

228.6mm dry discReference

Transmission

—

Dual RangeReference

PTO & Hydraulics

Pressure

112.0 barReference

137.9 barReference

Pump flow

94.6 lpmReference

—

Total flow

—

64.3 lpmReference

Rear Type

—

IReference

Control

—

position and draft controlReference

Rear PTO

—

independentReference

Rear PTO Type

—

540 (1.375)Reference

Engine RPM

—

540@1650Reference

Dimensions

Weight

5624 kgReference

3980 to 7400 poundsReference

Length

392 cmReference

301 cmReference

Height (hood)

187 cmReference

139 cmReference

Clearance (drawbar)

25 cmReference

—

Gauge

129 cmReference

—

Wheelbase

—

200 cmReference

Front tire

—

7.50x16Reference

Rear tire

—

14.9x24Reference

Lawn/turf rear

—

12.4x24Reference

Industrial front

—

7.50x16Reference

Industrial rear

—

14.9x24Reference

Height (steering wheel)

—

154 cmReference

Ground clearance

—

50 cmReference

Front tread

—

137/143 cmReference

Rear tread

—

127/154 cmReference

Allis Chalmers HD-4 Loader attachments

HD-4 Loader Serial Numbers

Location:

Serial number on the front of the crawler, below the grill.Reference

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Allis Chalmers HD-4 Loader Tracks

Width

167 cmReference

—

Length on ground

177 cmReference

—

Area on ground

0.5 m²Reference

—

Ground pressure

0.5 barReference

—

Allis Chalmers I40 attachments

Attachment overview

Allis-Chalmers Backhoe

Backhoe type

—

Allis-Chalmers BackhoeReference

Transport height

—

320 cmReference

Bucket width

—

91 cmReference

Digging depth

—

309 cmReference

2-Foot flat digging depth

—

304 cmReference

Reach from pivot

—

426 cmReference

Bucket force

—

2494 kgReference

Speeds

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.