Table of Contents
Allis Chalmers D21 Series I Production
Manufacturer: Allis Chalmers
Factory: West Allis, Wisconsin, USA
Years Built: 1963 – 1969
Allis Chalmers D21 Series I Engine
Allis Chalmers 3400, diesel, 6-cylinder, liquid-cooled, 426 ci [7.0 L]
Power: 63 hp [47.0 kW]
Drawbar: 93.09 hp [69.4 kW]
Bore: 4.25×5.00 inches [108 x 127 mm]
Air Cleaner: dry
Compression: 16.0:1
Rated RPM: 2200
Starter volts: 12
Allis Chalmers D21 Series I Transmission
Transmission: Power Director
Gears: 8 forward and 2 reverse
Speeds: With 18.4×34 rear tires.
Allis Chalmers D21 Series I Dimensions
Wheelbase: 96.1 inches [244 cm]
Weight: 9500 to 11700 pounds
Allis Chalmers D21 Series I Mechanical
Chassis: 4×2 2WD
Steering: power
Brakes: band actuated disc
Cab: Open operator station.
Allis Chalmers D21 Series I Hydraulics
HydraulicsType: open center
HydraulicsValves: 1
HydraulicsPumpFlow: 10.5 gpm [39.7 lpm] (main pump Series IV)