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Years in Production / 1959–1968

Allis-Chalmers

D12

Explore the specifications, hardware, and original references for the Allis-Chalmers D12.

Allis-Chalmers D12 · Illustration

Allis-Chalmers D12 · Illustration

31hp

Source index power

2WD Only

Drive

1959–1968

Production years

Allis-Chalmers

Manufacturer

D12 / 01

At a glance

Production

Row-Crop tractor

Built in West Allis, Wisconsin, USA

Manufacturer
Allis Chalmers
Original Price
$3,522 (1968)

Hydraulics

Type
live
Valves
1 or 2

Hitch

Rear Type
I
Type
Snap-Couple

Pto

Rear Type
540

Serial Numbers

FAQ: How to read a serial number table.

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

Belt Pulley

Rpm
1220
Speed
2556 ft/min779.07 meters/min

Mechanical

Two-wheel drive

Open operator station.

D12 / 02

Under the hood

Engine Detail (Option 1)

Allis-Chalmers

gasoline

4-cylinder

liquid-cooled vertical L-head

Original engine, used until 149 ci engine appeared in 1961.

Displacement
138.7 ci2.3 L
Bore Stroke
3.375x3.875 inches86 x 98 mm
Power
31 hp23.1 kW
Air Cleaner
oil bath
Compression Ratio
7.75:1
Rated Rpm
1650
Starter Volts
6
Oil Capacity
4 qts3.8 L
Coolant Capacity
8 qts7.6 L
Fuel Type
gasoline
Cylinders
4
Cooling
liquid-cooled vertical L-head

Engine Detail (Option 2)

Allis-Chalmers

gasoline

4-cylinder

liquid-cooled

The larger, 149 cubic inch, engine was introduced on the D12 at serial number 3001 in 1961.

Displacement
149 ci2.4 L
Bore Stroke
3.50x3.875 inches89 x 98 mm
Air Cleaner
oil bath
Compression Ratio
7.5:1
Rated Rpm
1650
Firing Order
1-2-4-3
Fuel Type
gasoline
Cylinders
4
Cooling
liquid-cooled

Engine Options

Allis-Chalmers 2.3L 4-cyl gasoline

Allis-Chalmers 2.4L 4-cyl gasoline

Fuel Tank
12.5 gal47.3 L

D12 / 03

Gears & controls

Transmission

Transmission Type
sliding gear
Gears
4 forward and 1 reverse

D12 / 04

Size. Stance. Footprint.

Dimensions And Tires

Wheelbase
78.75 inches200 cm
Weight
2,800 lbs1270 kg
Front Tire
5.00x15
Rear Tire
10x24

Tires And Tracks

Front Ag
5.00x15
Rear Ag
10x24
Rear Ag
11x24

D12 / 05

Tractor Photos

Model illustration www.tractordata.com source ↗
Allis-Chalmers D 12 — Roseohioresident, CC BY-SA 4.0. Resized; converted to WebP. · Roseohioresident · CC BY-SA 4.0 commons.wikimedia.org source ↗

See it in action

Videos

Watch Allis-Chalmers D12 videos from their original YouTube creators.

Family Collection of Allis Chalmers D Series Tractors - Allis Chalmers D12 Tractor

Video by Classic Tractor Fever

Watch on YouTube ↗

D12 / 07

Tests (NTTL)

Nebraska Tractor Test 723

138 gasoline 4-speed 2WDOctober 13 - 20, 1959

PTO performance

Drawbar performance

Gear 3 used for power test.

Gear 1 used for pull test.

Id
723
Power At Rated Engine Speed
28.56 hp21.3 kW
Fuel Use
2.3 gal/hour8.7 l/hour
Fuel Use
2.2 gal/hour8.3 l/hour
Max Power
23.56 hp17.6 kW
Max Pull
4,041 lbs1832 kg

Nebraska Tractor Test 813

149 gasoline 4-speed 2WDApril 4 - 19, 1962

PTO performance

Drawbar performance

Gear 3 used for power test.

Gear 1 used for pull test.

Id
813
Power At Rated Engine Speed
33.32 hp24.8 kW
Fuel Use
2.7 gal/hour10.2 l/hour
Fuel Use
2.8 gal/hour10.6 l/hour
Max Power
29.43 hp21.9 kW
Max Pull
4,241 lbs1923 kg

Allis-Chalmers D12 · photo 1 / 2

Illustration of Allis-Chalmers D12 on a farm

Model illustration www.tractordata.com source ↗