Allis Chalmers D21 Series I


Allis Chalmers D21 Series I tractor photo
1963 - 1969
Model year
D Series
Row-Crop tractor
Production
ManufacturerAllis Chalmers
Row-Crop tractor
Built in West Allis, Wisconsin, USA
Total built1,129
Original price was $5,700 in 1964
The D21 was the first Allis Chalmers tractor to have over 100 horsepower. The upgraded D21 II began at serial number 2201 in 1965.
Allis Chalmers D21 Engine
Allis Chalmers 7.0L 6-cyl diesel
Fuel tank52 gal
196.8 L
Engine details ...
Allis Chalmers D21 Power
Engine119 hp
88.7 kW
Drawbar (claimed)93 hp
69.4 kW
PTO (claimed)103 hp
76.8 kW
Plows7
Drawbar (tested)93.09 hp
69.4 kW
PTO (tested)103.06 hp
76.9 kW
Performance test details ...
Mechanical
Two-wheel drive
Power steering
Band actuated disc brakes
Open operator station.
Tractor hitch
Rear TypeIII/II
Power Take-off (PTO)
Rear PTOindependent
Rear RPM1000
Dimensions & Tires
Wheelbase96.1 inches
244 cm
Weight9500 lbs
4309 kg
Front tire7.50x20
Rear tire18.4x34
Full dimensions and tires ...
D21 Serial Numbers
Location:Serial number on the left side of the Allis-Chalmers D21, stamped into the flange near the starter mounting.
1963100 (Series I)
19641417 (Series I)
19652079 (Series I)
Final2129 (Series I)
19652130 (Series II)
19662408 (Series II)
19672863 (Series II)
19683777 (Series II)
19694498 (Series II)
Final4609 (Series II)

FAQ: How to read a serial number table.
Electrical
Groundnegative
Charging systemDelco-Remy generator
Charging amps32
Batteries2
 4 OptOptional
Battery volts12
Battery AH95
References
D21 Series I references literature
New D21 Tractor (FE-131/637) published in 1963
Operating Instructions Model D21 Tractor (TM-346A) published in 1963
Page information
Contact: Peter Easterlund
Updated on September 18, 2022
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