Allis Chalmers D21 Series I

Allis Chalmers D21The Allis Chalmers D21 Series I is a 2WD row-crop tractor from the series. This tractor was manufactured by Allis Chalmers in West Allis, Wisconsin, USA from 1963 to 1965. The Allis Chalmers D21 is equipped with a 7.0 L (425.9 cu·in) six-cylinder diesel engine and a sliding gear with dry disc clutch transmission and 8 forward and 2 reverse gears.

The Allis Chalmers D21 row-crop tractor used the Allis Chalmers 3400 engine. It is a 7.0 L, 6,980 cm2, (426.0 cu·in) six-cylinder natural aspirated diesel engine with 108.0 mm (4.25 in) of the cylinder bore and 127.0 mm (5 in) of the piston stroke. The compression ratio rating is 16.0:1. This engine produced 104.4 PS (76.8 kW; 103.0 HP) at 2,200 rpm of PTO output power.

The AC D21 Series I is equipped with power steering, band actuated disc brakes, open operator station, and 196.8 liters (52 US gal.; 43.3 Imp. gal) fuel tank.

Allis Chalmers D21 Specifications

General Specifications
ModelAllis Chalmers D21 Series I
Length4,070 mm (160.2 in)
Width2,320 mm (91.3 in)
Height2,700 mm (106.3 in)
Wheel base2,440 mm (96.1 in)
Weight4,310 kg (9,502 lbs)
Fuel tank capacity196.8 liters (52 US gal.; 43.3 Imp. gal)
BatteryTwo or four 12V, 95Ah
Cabin typeOpen operator station
Engine
Engine modelAllis Chalmers 3400
Engine typeFour-stroke, liquid-cooled, inline
Cylinders6
Fuel typeDiesel
Displacement7.0 L, 6,980 cm2, (426.0 cu·in)
Bore and stroke108.0 mm X 127.0 mm (4.25 in X 5 in)
Compression ratio16.0:1
Horsepower104.4 PS (76.8 kW; 103.0 HP) at 2,200 rpm
StarterElectric
Oil capacity:11.4 L (12 US. qt, 10 Imp. qt.)
Coolant capacity:19.9 L (21 US. qt, 17.5 Imp. qt.)
Transmission and chassis
Chassis4×2 2WD
Steering typePower
BrakesBand actuated disc
Transmission modelPower Director
Transmission typeSliding gear with dry disc clutch
Gears8 forward and 2 reverse
Speed Forward: 26.0 kmh (16.2 mph) Reverse: 11.0 (6.8 mph)
Transmission oil capacity 64.4 L (17 US. gal, 14.2 Imp. gal)
87.1 L (23 US. gal, 19.2 Imp. gal)
Tires
Front tiresAg: 7.50×20
Rear tiresAg: 18.4×34
Three-Point Hitch
CaterogyIII/II
Control type
Lift capacity (at ends)
PTO (Power take-off shaft)
Rear PTO typeIndependent
Rear PTO speed1,000 rpm
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