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Allis Chalmers D-12

Allis Chalmers D-12 tractor
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The Allis Chalmers D-12 is an industrial tractor produced from 1959 to 1964 by Allis Chalmers in West Allis, Wisconsin, USA. It features a 2.4L 4-cylinder gasoline engine producing 39 hp net, with a 4-speed sliding gear transmission. The tractor is two-wheel drive with manual steering and drum brakes, and has an open operator station. It includes hydraulics with an open center system, 1500 psi pressure, and 1 or 2 valves. The rear hitch is a Snap-Couple type with a rear PTO operating at 540 RPM at 1650 engine RPM. Dimensions include a 78.75 inch wheelbase, 121 inch length, and a shipping weight of 3200 lbs. Attachments available include the L-102 front-end loader and Allis-Chalmers Mark I and Mark TEN backhoes.
Allis Chalmers D-12industrial tractor39 hp4-speed transmissionloaderbackhoe195919601961196219631964
Power-
Founded-
ModelD-12

Technical Specifications

Detailed specifications and technical data for Allis Chalmers D-12

Power

Engine (net):39 hp (29.1 kW)
PTO (claimed):35.3 hp (26.3 kW)
Drawbar (claimed):30.6 hp (22.8 kW)

Tires

Ag rear:11.2x24, 12.4x24
Ag front:5.00x15, 6.00x16

Engine

Type:gasoline, 4-cylinder, liquid-cooled
Model:Allis-Chalmers 2.4L 4-cyl gasoline
Torque:137 lb-ft (185.8 Nm)
Fuel tank:12.5 gal (47.3 L)
Rated RPM:1650
Air cleaner:oil bath
Bore/Stroke:3.50x3.875 inches (89 x 98 mm)
Compression:7.5:1
Power (net):39 hp (29.1 kW)
Displacement:149 ci (2.4 L)
Firing order:1-2-4-3
Oil capacity:4.5 qts (4.3 L)
Starter volts:12
Coolant capacity:8 qts (7.6 L)

Dimensions

Length:121 inches (307 cm)
Wheelbase:78.75 inches (200 cm)
Rear tread:52 to 79.25 inches (132 to 201 cm)
Front tread:49.3 to 80 inches (125 to 203 cm)
Height (hood):52.5 inches (133 cm)
Shipping weight:3200 lbs (1451 kg)
Height (exhaust):76.5 inches (194 cm)
Clearance (rear axle):22 inches (55 cm)
Clearance (front axle):21.25 inches (53 cm)

Hydraulics

Type:open center
Valves:1 or 2
Pressure:1500 psi (103.4 bar)
Pump flow:3.56 gpm (13.5 lpm)

Mechanical

Drive:Two-wheel drive
Brakes:Drum brakes
Steering:Manual steering
Operator station:Open operator station

Production

Type:Industrial tractor
Built in:West Allis, Wisconsin, USA
Years produced:1959 - 1964

Attachments

Backhoe:[object Object],[object Object]
Front-end loader:L-102 Loader: 2000 lbs lift (full at pin) (907 kg), 3200 lbs breakout (1451 kg), 30 inches reach (dumped) (76 cm), 6° rollback, 100 inches clearance (dumped) (254 cm), weight: 1020 lbs (462 kg) (Weight of loader without bucket)

Belt Pulley

RPM:1220
Speed:2556 ft/min (779.07 meters/min)

Transmission

Type:sliding gear
Gears:4 forward and 1 reverse
Oil capacity:4.5 qts (4.3 L)

Tractor hitch

Type:Snap-Couple
Rear Type:I

Power Take-off (PTO)

Engine RPM:540@1650
Rear PTO Type:540

Related Models

Allis Chalmers D-10

Model:D-10