Allis Chalmers HD6 tractor

Allis Chalmers HD6

Power

57 hp

Production

1955-1974

Engine

Diesel, 4-cylinder

Transmission

Sliding gear

Introduction

Allis Chalmers HD6 Agricultural Crawler Tractor

The Allis Chalmers HD6 is a crawler tractor produced between 1955 and 1974 in Springfield, Illinois, USA. Designed for demanding agricultural applications, this machine relies on a tracked drive system to provide stability and traction in challenging field conditions.

Engine Specifications

The tractor is powered by a liquid-cooled, 4-cylinder vertical I-head diesel engine with a displacement of 344 cubic inches (5.6 liters). It delivers a net power output of 57 hp (42.5 kW) at a rated speed of 1800 RPM. The engine features a compression ratio of 15.0:1, with a bore and stroke of 4.4375 by 5.5626 inches. It requires 10 quarts (9.5 L) of oil and 15 quarts (14.2 L) of coolant for operation, utilizing a 24-volt starter system.

Transmission and Drive

The HD6 utilizes a crawler drive system, which is essential for heavy-duty traction. Two transmission options were provided: a 5-speed sliding gear transmission offering 5 forward and 1 reverse gear, or a 2-speed power shift transmission. The sliding gear transmission requires 20 quarts (18.9 L) of oil capacity.

Dimensions and Chassis

The tractor features an open operator station design. It is equipped with 13-inch wide tracks, which distribute the machine's weight to minimize soil compaction and maximize grip. The total operating weight of the unit ranges from 12,400 to 13,400 pounds, depending on the configuration.

Conclusion

The Allis Chalmers HD6 is a durable, mid-range crawler tractor suited for heavy agricultural tasks that require significant drawbar pull and ground stability. Its longevity, spanning nearly two decades of production, reflects its mechanical reliability in various field environments.

Production Information of Allis Chalmers, HD6

  • Agricultural Crawler tractor
  • Built in Springfield, Illinois, USA
ManufacturerAllis Chalmers

Engine Specifications of Allis Chalmers, HD6

  • Liquid-cooled vertical I-head
  • Diesel
  • 4-cylinder
Oil capacity10 qts [9.5 L]
Displacement344 ci [5.6 L]
Compression15.0:1
Bore/Stroke4.4375x5.5626 inches [113 x 141 mm]
Coolant capacity15 qts [14.2 L]
Starter volts24
Rated RPM1800
Power (net)57 hp [42.5 kW]

Transmission Information of Allis Chalmers, HD6

Transmission variants 1

TypeSliding gear
Gears5 forward and 1 reverse
Oil capacity20 qts [18.9 L]

Transmission variants 2

TypePower shift
Gears2 forward and reverse
  • 5-speed sliding gear
  • 2-speed power shift

Mechanical Specs of Allis Chalmers, HD6

  • Open operator station.
DriveCrawler

Power Information of Allis Chalmers, HD6

  • Https://www.tractordata.com/farm-tractors/003/0/8/3085-allis-chalmers-hd6-tests.html

Where it sits

With 57 HP, the Allis Chalmers HD6 sits between A (56 HP) and 170 (60 HP) in Allis Chalmers's range. Its power puts it in the 82th percentile of 1950s models in our database (592 machines).

Frequently asked questions

How much horsepower does the Allis Chalmers HD6 have?

The Allis Chalmers HD6 delivers 57 HP.

What years was the Allis Chalmers HD6 produced?

The Allis Chalmers HD6 was produced in 1955-1974.

What engine does the Allis Chalmers HD6 have?

The Allis Chalmers HD6 is powered by a Diesel, 4-cylinder engine.

What transmission does the Allis Chalmers HD6 use?

The Allis Chalmers HD6 uses a Sliding gear transmission.

Compare the Allis Chalmers HD6 with another model