Allis Chalmers D12 Engine


Allis Chalmers D12 tractor photo
1959 - 1968
D Series
Row-Crop tractor
Series map:
D10
D12
31.0hp
31.0hp
Engines overview
Allis-Chalmers 2.3L 4-cyl gasoline
Allis-Chalmers 2.4L 4-cyl gasoline
Engine Detail
Allis-Chalmers
gasoline
4-cylinder
liquid-cooled vertical L-head
Original engine, used until 149 ci engine appeared in 1961.
Displacement138.7 ci
2.3 L
Bore/Stroke3.375x3.875 inches
86 x 98 mm
Power31 hp
23.1 kW
Air cleaneroil bath
Compression7.75:1
Rated RPM1650
Starter volts6
Oil capacity4 qts
3.8 L
Coolant capacity8 qts
7.6 L
Engine Detail
Allis-Chalmers
gasoline
4-cylinder
liquid-cooled
The larger, 149 cubic inch, engine was introduced on the D12 at serial number 3001 in 1961.
Displacement149 ci
2.4 L
Bore/Stroke3.50x3.875 inches
89 x 98 mm
Air cleaneroil bath
Compression7.5:1
Rated RPM1650
Firing order1-2-4-3
Page information
Contact: Peter Easterlund
Updated on July 17, 2017
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