McCormick-Deering OS-4 Engine


McCormick-Deering OS-4 tractor photo
1944 - 1953
Engine Detail
International Harvester
gasoline
4-cylinder
liquid-cooled
Displacement152.1 ci
2.5 L
Bore/Stroke3.375x4.45 inches
86 x 113 mm
Air cleaneroil bath
Compression5.9:1 (high-compression gasoline)
 4.75:1 (gasoline-distillate)
 4.5:1 (kerosene)
Rated RPM1650
Firing order1-3-4-2
Oil capacity6 qts
5.7 L
Coolant capacity17 qts
16.1 L
Page information
Peter Easterlund - owner of TractorData.com
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Peter Easterlund - owner/author
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Updated on February 19, 2023
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