Allis Chalmers 8550

Allis Chalmers 8550 Production

Manufacturer: Allis Chalmers

Factory: West Allis, Wisconsin, USA

Years Built: 1978 – 1981

Allis Chalmers 8550 Engine

Allis Chalmers 6120T, turbocharged diesel, 6-cylinder 24-valve, liquid-cooled inline, 731 ci [12.0 L], 60 qts [56.8 L] (3 filter)

Power: 300 hp [223.7 kW]

Drawbar: 217.92 hp [162.5 kW]

Bore: 5.25×6.25 inches [133 x 159 mm]

Air Cleaner: dry

Compression: 16.25:1

Rated RPM: 775-2800

Starter volts: 12

Allis Chalmers 8550 Transmission

Transmission: Power Director

Gears: 20 forward and 4 reverse

Speeds: Allis 8550 speeds with 18.4×38 tires.

Allis Chalmers 8550 Dimensions

Wheelbase: 126 inches [320 cm]

Weight: 26400 to 29360 pounds

Allis Chalmers 8550 Mechanical

Chassis: 4×4 articulated 4WD

Steering: hydrostatic power

Brakes: hydraulic wet discs

Cab: Acousta Cab II standard with heat and air-conditioning. Optional radio and 8 track tape deck.

Allis Chalmers 8550 Hydraulics

HydraulicsType: closed center

HydraulicsValves: 3 or 4

HydraulicsPumpFlow: 74.9 gpm [283.5 lpm]