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Allis Chalmers D12

Allis Chalmers D12 tractor
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The Allis Chalmers D12 is a row-crop tractor produced from 1959 to 1968 as part of the D Series. It was built in West Allis, Wisconsin, USA. The tractor features a 31 hp gasoline engine with options of 2.3L or 2.4L 4-cylinder liquid-cooled engines. It has a 4-speed sliding gear transmission and two-wheel drive with an open operator station. The D12 has a wheelbase of 78.75 inches and weighs 2,800 lbs shipping weight. It includes live hydraulics with 1 or 2 valves, a Snap-Couple rear hitch, and a 540 RPM rear PTO. Variants include the D12 High Clearance and the D10 single-row tractor. The tractor was originally priced at $3,522 in 1968.
Allis Chalmers D12tractorspecificationsenginetransmissiondimensionshydraulicsfarm tractorrow-crop tractor
Power31 hp
Founded1959 - 1968
ModelD12

Technical Specifications

Detailed specifications and technical data for Allis Chalmers D12

Power

Engine power:31 hp (23.1 kW)
PTO (tested):33.32 hp (24.8 kW)
PTO (claimed):30 hp (22.4 kW)
Drawbar (tested):29.43 hp (21.9 kW)
Drawbar (claimed):25.75 hp (19.2 kW)

Tires

Ag rear:10x24, 11x24
Ag front:5.00x15

Engine

Power 1:31 hp (23.1 kW)
Details 1:Allis-Chalmers gasoline 4-cylinder liquid-cooled vertical L-head
Details 2:Allis-Chalmers gasoline 4-cylinder liquid-cooled
Introduced:The larger, 149 cubic inch, engine was introduced on the D12 at serial number 3001 in 1961
Rated RPM 1:1650
Rated RPM 2:1650
Firing order:1-2-4-3
Air cleaner 1:oil bath
Air cleaner 2:oil bath
Bore/Stroke 1:3.375x3.875 inches (86 x 98 mm)
Bore/Stroke 2:3.50x3.875 inches (89 x 98 mm)
Compression 1:7.75:1
Compression 2:7.5:1
Displacement 1:138.7 ci (2.3 L)
Displacement 2:149 ci (2.4 L)
Engine options:Allis-Chalmers 2.3L 4-cyl gasoline, Allis-Chalmers 2.4L 4-cyl gasoline
Oil capacity 1:4 qts (3.8 L)
Original engine:Used until 149 ci engine appeared in 1961
Starter volts 1:6
Coolant capacity 1:8 qts (7.6 L)

Variants

D10:single-row tractor
D12 High Clearance:cultivation tractor

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:2,800 lbs (1270 kg)
Ballasted weight:5,630 lbs (2553 kg)
Height (exhaust):76.5 inches (194 cm)
Clearance (rear axle):22.25 inches (56 cm)
Clearance (front axle):20.25 inches (51 cm)

Hydraulics

Type:live
Valves:1 or 2

Mechanical

Drive:Two-wheel drive
Operator station:Open operator station.

Production

Type:Row-Crop tractor
Series:D Series
Built in:West Allis, Wisconsin, USA
Original price:$3,522 (1968)
Years produced:1959 - 1968

Belt Pulley

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

Transmission

Type:sliding gear
Gears:4 forward and 1 reverse

Tractor hitch

Type:Snap-Couple
Rear Type:I

Serial Numbers

1959:1001
1960:1950
1961:2801
1962:3638
1963:5501
1964:6012
1965:9192
1966:9508
1967:9830

Power Take-off (PTO)

Rear PTO Type:540

Related Models

Allis Chalmers D10

Model:D10