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Years in Production / 1955–1974
Allis-Chalmers
HD6
Explore the specifications, hardware, and original references for the Allis-Chalmers HD6.

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.
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