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Years in Production / 1955–1974

Allis-Chalmers

HD6

Explore the specifications, hardware, and original references for the Allis-Chalmers HD6.

Generic tractor; no model photo available
No photo

57hp

Source index power

Tracks

Drive

1955–1974

Production years

Allis-Chalmers

Manufacturer

HD6 / 01

At a glance

Production

Agricultural Crawler tractor

Built in Springfield, Illinois, USA

Manufacturer
Allis Chalmers

Mechanical

Open operator station.

Drive
crawler

HD6 / 02

Under the hood

Engine Detail

Allis-Chalmers HD-344

diesel

4-cylinder

liquid-cooled vertical I-head

Displacement
344 ci5.6 L
Bore Stroke
4.4375x5.5626 inches113 x 141 mm
Power Net
57 hp42.5 kW
Compression Ratio
15.0:1
Rated Rpm
1800
Starter Volts
24
Oil Capacity
10 qts9.5 L
Coolant Capacity
15 qts14.2 L
Fuel Type
diesel
Cylinders
4
Cooling
liquid-cooled vertical I-head

Engine Options

Allis-Chalmers 5.6L 4-cyl diesel

Fuel Tank
40 gal151.4 L

HD6 / 03

Gears & controls

Transmission (Option 1)

Transmission Type
sliding gear
Gears
5 forward and 1 reverse
Oil Capacity
20 qts18.9 L

Transmission (Option 2)

Transmission Type
power shift
Gears
2 forward and reverse

HD6 / 04

Size. Stance. Footprint.

Dimensions

Length
127 in322 cm
Width
78.5 in199 cm
Height
66 in167 cm

Tires And Tracks

13-inch tracks

Weight
12400 to 13400 pounds

Tires And Tracks

Width
13 inches33 cm

See it in action

Videos

Watch Allis-Chalmers HD6 videos from their original YouTube creators.

HD6 / 06

Tests (NTTL)

Nebraska Tractor Test 580

Diesel 5-speed crawlerJuly 7 - 14, 1956

Drawbar performance

Gear 2 used for power test.

Gear 1 used for pull test.

Id
580
Belt Power Max
60.51 hp45.1 kW
Belt Fuel Use Max
5.3 gal/hour20.1 l/hour
Max Power
49.95 hp37.2 kW
Max Pull
12636 lbs5731 kg