All 69 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production
Manufacturer
Allis Chalmers
(no label)
Row-Crop tractor
(no label)
Built in West Allis, Wisconsin, USA
Total built
1,129
(no label)
Original price was $5,700 in 1964
(no label)
The D21 was the first Allis Chalmers tractor to have over 100 horsepower. The upgraded D21 II began at serial number 2201 in 1965.
Engine
(no label)
Allis Chalmers 7.0L 6-cyl diesel
Fuel tank
52 gal | 196.8 L
Transmission
(no label)
8-speed sliding gear
Power
Engine
119 hp | 88.7 kW
Drawbar (claimed)
93 hp | 69.4 kW
PTO (claimed)
103 hp | 76.8 kW
Plows
7
Drawbar (tested)
93.09 hp | 69.4 kW
PTO (tested)
103.06 hp | 76.9 kW
Mechanical
(no label)
Two-wheel drive
(no label)
Power steering
(no label)
Band actuated disc brakes
(no label)
Open operator station.
Hitch
Rear Type
III/II
Pto
Rear PTO
independent
Rear PTO Type
1000
Dimensions
Wheelbase
96.1 inches | 244 cm
Weight
9500 lbs | 4309 kg
Front tire
7.50x20
Rear tire
18.4x34
Electrical
Ground
negative
Charging system
Delco-Remy generator
Charging amps
32
Batteries
2
Batteries
4
Battery volts
12
Battery AH
95
Engine
Engine detail
(no label)
Allis Chalmers 3400
(no label)
diesel
(no label)
6-cylinder
(no label)
liquid-cooled
Displacement
426 ci | 7.0 L
Bore/Stroke
4.25x5.00 inches | 108 x 127 mm
Power
119 hp | 88.7 kW
Air cleaner
dry
Compression
16.0:1
Rated RPM
2200
Firing order
1-5-3-6-2-4
Coolant capacity (Coolant)
21 qts | 19.9 L
Intake valve clearance
0.015 inches | 0.381 mm
Exhaust valve clearance
0.015 inches | 0.381 mm
Engine oil
Oil capacity
12 qts | 11.4 L
Transmission
Transmission
Transmission
Power Director
Type
sliding gear
Gears
8 forward and 2 reverse
Clutch
dry disc
Oil capacity
68 qts | 64.4 L
Oil capacity
92 qts | 87.1 L
(no label)
Transmission is controlled by means of a range control knob and a gear shift lever. The range knob is located below the steering wheel, pushing it forward puts the tractor in high range, pull it back engages low range. The gear shift selects one of four forward gears, or reverse. The tractor must be stopped and clutch used to change gears or range.