Tractorpedia.com

Allis Chalmers D21 Series I

Allis Chalmers D21 Series I tractor
View Images
The Allis Chalmers D21 Series I was produced from 1963 to 1969 as a row-crop tractor built in West Allis, Wisconsin, USA. It was the first Allis Chalmers tractor to exceed 100 horsepower, featuring a 7.0L 6-cylinder diesel engine producing 119 hp. The tractor has an 8-speed sliding gear transmission with Power Director, two-wheel drive, power steering, and band actuated disc brakes. It has an open operator station and a rear Type III/II hitch. The rear PTO is independent with a 1000 rpm type. The D21 Series I has a wheelbase of 96.1 inches, weighs 9500 lbs shipping weight, and features various tire options. Electrical system includes a Delco-Remy generator and 12-volt batteries. Total production was 1,129 units with an original price of $5,700 in 1964.
Allis Chalmers D21D21 Series Itractor specificationsfarm tractordiesel engine119 hprow-crop tractor
Power-
Founded-
ModelD21 Series I

Technical Specifications

Detailed specifications and technical data for Allis Chalmers D21 Series I

Power

Plows:7
Engine power:119 hp (88.7 kW)
PTO (tested):103.06 hp (76.9 kW)
PTO (claimed):103 hp (76.8 kW)
Drawbar (tested):93.09 hp (69.4 kW)
Drawbar (claimed):93 hp (69.4 kW)

Engine

Type:diesel
Model:Allis Chalmers 3400
Power:119 hp (88.7 kW)
Cooling:liquid-cooled
Cylinders:6-cylinder
Fuel tank:52 gal (196.8 L)
Rated RPM:2200
Air cleaner:dry
Bore/Stroke:4.25x5.00 inches (108 x 127 mm)
Displacement:426 ci (7.0 L)
Firing order:1-5-3-6-2-4
Oil capacity:12 qts (11.4 L)
Coolant capacity:21 qts (19.9 L)
Compression ratio:16.0:1
Intake valve clearance:0.015 inches (0.381 mm) Hot
Exhaust valve clearance:0.015 inches (0.381 mm) Hot

Electrical

Ground:negative
Batteries:2 (4 Optional)
Battery AH:95
Battery volts:12
Charging amps:32
Charging system:Delco-Remy generator

Mechanical

Drive:Two-wheel drive
Brakes:Band actuated disc brakes
Steering:Power steering
Operator station:Open operator station

Production

Type:Row-Crop tractor
Notes:The D21 was the first Allis Chalmers tractor to have over 100 horsepower. The upgraded D21 II began at serial number 2201 in 1965.
Built in:West Allis, Wisconsin, USA
Total built:1,129
Manufacturer:Allis Chalmers
Original price:$5,700 in 1964
Years produced:1963 - 1969

Transmission

Type:Power Director sliding gear
Gears:8 forward and 2 reverse
Clutch:dry disc
Controls:Range control knob below steering wheel; gear shift lever selects one of four forward gears or reverse; tractor must be stopped and clutch used to change gears or range
Oil capacity:68 qts (64.4 L) No PTO or hydraulics, 92 qts (87.1 L) with PTO/hydraulics

Tractor hitch

Rear Type:III/II

Serial Numbers

1963:100 (Series I)
1964:1417 (Series I)
1965:2079 (Series I)
1966:2408 (Series II)
1967:2863 (Series II)
1968:3777 (Series II)
1969:4498 (Series II)
Location:Serial number on the left side of the Allis-Chalmers D21, stamped into the flange near the starter mounting.
1965 Series II:2130
Final Series I:2129
Final Series II:4609

Dimensions & Tires

Width:91.6 inches (232 cm)
Length:160.6 inches (407 cm)
Rear tire:18.4x34, 24.5x32
Wheelbase:96.1 inches (244 cm)
Front tire:7.50x20, 11.00x16
Hood height:71.75 inches (182 cm)
Exhaust height:106.6 inches (270 cm)
Shipping weight:9500 lbs (4309 kg)
Ballasted weight:11700 lbs (5307 kg)
Clearance (rear axle):26.75 inches (67 cm)
Steering wheel height:90.3 inches (229 cm)
Clearance (front axle):21.3 inches (54 cm)

Power Take-off (PTO)

Rear PTO:independent
Rear PTO Type:1000