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Allis Chalmers D21 Specifications

Allis Chalmers D21 Engine Technical Data

Engine Model .................. Allis Chalmers 3500
Engine Type .................. Four stroke, 6-cylinder turbocharged diesel
Number of Cylinders .................. 6
Displacement, cu in (L) .................. 426 (7.00)
Engine Bore, in (mm) .................. 4.25 (108.0)
Engine Stroke, in (mm) .................. 5.00 (127.0)
Aspiration .................. Turbocharged
Rated Engine Power, hp (kW) .................. 130.0 (96.3)
Rated Engine Speed, rpm .................. 2200
Compression .................. 16.0:1
Firing Order .................. 1-5-3-6-2-4
Fuel System .................. Direct injection
Fuel Filter .................. Dual cartridge
Lubricating Oil Filter Type .................. Full flow
Air Cleaner .................. Dry type with paper element
Valve Clearance, in (mm) .................. 0.015 (0.38)
Fuel Tank Capacity, gal (L) .................. 52.0 (197.0)
Oil Capacity, qts (L) .................. 15.0 (14.2)
Coolant Capacity, qts (L) .................. 31.0 (29.3)
Electrical System Rating, Volts .................. 12

AC D21 Power Take-Off

PTO Operational Type .................. Independent
PTO Horsepower, hp (kW) .................. 121.0 (90.2)
PTO Clutch .................. Dry disc
PTO Speed, rpm .................. 1000
PTO / Engine Speed, rpm .................. 1000/2200

Transmission Configuration

Transmission Type .................. Power Director
Gearbox Type .................. 8F/2R, Sliding gear
Number of Forward Gears .................. 8
Number of Reverse Gears .................. 2
Oil Capacity, qts (L) .................. 92.0 (87.1)
Clutch Type .................. Dry disc
Maximum Forward Speed, mph (kph) .................. 16.2 (26.1)
Maximum Reverse Speed, mph (kph) .................. 6.8 (10.9)

Allis Chalmers D21 Wheels and Tires

Drive Wheels .................. 2WD 4x2
Steering Configuration .................. Front steer
Steering System .................. Hydraulic with power assist
Brakes Type .................. Mechanical contracting band and disc
Front Tire Size (Std) .................. 7.50-20
Rear Tire Size (Std) .................. 18.4-34
Front Tire Size (Opt) .................. 11.0-16
Rear Tire Size (Opt) .................. 24.5x32
Front Tread Width, in (mm) .................. 60-80 (1520-2025)
Rear Tread Width, in (mm) .................. 68-88 (1720-2230)

Hydraulic System

Hydraulic System Type .................. Open Center
Implement Pump Type .................. Gear
Number of Standard Remote Valves .................. 3
3-Point Hitch Category .................. 3/2

AC D21 Dimensions and Weight

Wheelbase, in (mm) .................. 96.1 (2440)
Length, in (mm) .................. 160.6 (4070)
Height (Hood), in (mm) .................. 71.75 (1820)
Height (Steering Wheel), in (mm) .................. 90.3 (2290)
Overall Width, in (mm) .................. 91.6 (2320)
Ground Clearance, in (mm) .................. 20.5 (520)
Turning Radius, in (mm) .................. 130 (3290)
Weight (Shipping), lb (kg) .................. 9500 (4310)
Weight (Ballasted), lb (kg) .................. 11700 (5305)