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Years in Production / 1939–1947
Allis-Chalmers
HD14
Explore the specifications, hardware, and original references for the Allis-Chalmers HD14.

No photo
161hp
Engine estimate · from belt
Tracks
Drive
1939–1947
Production years
Allis-Chalmers
Manufacturer
HD14 / 01
At a glance
Production
Built in Springfield, Illinois, USA
- Manufacturer
- Allis Chalmers
- Total Built
- 6,405
Mechanical
Open operator station.
- Drive
- crawler
HD14 / 02
Under the hood
Engine Detail
General Motors 6-71
blower diesel
6-cylinder
liquid-cooled 2-cycle vertical I-head
- Displacement
- 426 ci7.0 L
- Bore Stroke
- 4.25x5.00 inches108 x 127 mm
- Compression Ratio
- 16.0:1
- Rated Rpm
- 1500
- Starter Volts
- 12
- Oil Capacity
- 14 qts13.2 L
- Coolant Capacity
- 48 qts45.4 L
- Cylinders
- 6
- Cooling
- liquid-cooled 2-cycle vertical I-head
Engine Options
General Motors 7.0L 6-cyl diesel
- Fuel Tank
- 68 gal257.4 L
HD14 / 03
Gears & controls
Transmission (Option 1)
- Transmission Type
- sliding gear
- Gears
- 6 forward and 2 reverse
- Oil Capacity
- 40 qts37.9 L
Transmission (Option 2)
- Transmission Type
- torque converter
- Gears
- 3 forward and 1 reverse
HD14 / 04
Size. Stance. Footprint.
Tires And Tracks
22-inch tracks
- Weight
- 28750 to 29330 pounds
Tires And Tracks
- Width
- 22 inches55 cm
- Length On Ground
- 85.4 inches216 cm
- Area On Ground
- 3759 in²2.4 m²
- Ground Pressure
- 7.39 psi0.5 bar
See it in action
Videos
Watch Allis-Chalmers HD14 videos from their original YouTube creators.
HD14 / 06
Tests (NTTL)
Nebraska Tractor Test 362
Diesel 6-speed crawlerOctober 15 - November 5, 1940
Drawbar performance
Gear 2 used for power test.
Gear 1 used for pull test.
- Id
- 362
- Belt Power Max
- 145.39 hp108.4 kW
- Belt Fuel Use Max
- 9.6 gal/hour36.3 l/hour
- Max Power
- 126.98 hp94.7 kW
- Max Pull
- 28,019 lbs12709 kg