Allis Chalmers

Allis Chalmers HD15

The Allis Chalmers HD15 is an agricultural crawler tractor produced from 1951 to 1955. It was built in Springfield, Illinois, USA, with a total production of 3,909 units. The tractor features a General Motors 7.0L 6-cylinder blower diesel engine, liquid-cooled 2-cycle vertical I-head design, rated at an estimated 116.7 hp. It has a 6-speed constant mesh transmission with 6 forward and 3 reverse gears. The HD15 uses crawler drive with hydraulic steering clutches and an open operator station. It has a fuel capacity of 91.5 gallons and weighs between 27,850 and 30,895 pounds. The tractor is equipped with 20-inch wide tracks and an 18-inch diameter belt pulley. Performance tests show drawbar power up to 104.4 hp and belt power up to 117.7 hp.

Power116 hp[B]

Founded1951 - 1955

ModelHD15

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Technical Specifications

Detailed specifications and technical data for Allis Chalmers HD15

Power

Belt (tested)	117.7 hp (87.8 kW)
Belt (claimed)	105 hp (78.3 kW)
Drawbar (tested)	104.4 hp (77.9 kW)
Drawbar (claimed)	82 hp (61.1 kW)

Engine

Type	blower diesel
Cooling	liquid-cooled 2-cycle vertical I-head
Cylinders	6-cylinder
Rated RPM	1600
Bore/Stroke	4.25x5.00 inches (108 x 127 mm)
Compression	16.0:1
Displacement	426 ci (7.0 L)
Manufacturer	General Motors
Oil capacity	20 qts (18.9 L)
Starter volts	12
Coolant capacity	47 qts (44.5 L)

Tracks

Width	20 inches (50 cm)

Capacity

Fuel	91.5 gal (346.3 L)
Steering	10 qts (9.5 L)

Dimensions

Gauge	74 inches (187 cm)
Width	96.75 inches (245 cm)
Height	95 inches (241 cm)
Length	181 inches (459 cm)
Shipping weight	27850 lbs (12632 kg)
Ground clearance	14.375 inches (36 cm)
Operating weight	30895 lbs (14013 kg)