International Harvester 666 Engine


International Harvester 666 tractor photo
1972 - 1976
Row-Crop tractor
Series map:
666
75.0hp
Engine options
International Harvester 5.1L 6-cyl diesel
International Harvester 4.8L 6-cyl gasoline
Engine Detail
International Harvester D312
diesel
6-cylinder
liquid-cooled
Displacement312 ci
5.1 L
Bore/Stroke3.875x4.410 inches
98 x 112 mm
Power (gross)75 hp
55.9 kW
Fuel systemdirect injection
Air cleanerdual stage dry
Compression17:1
Rated RPM2000
Starter volts12
Coolant capacity21 qts
19.9 L
Engine Detail
International Harvester C291
gasoline
6-cylinder
liquid-cooled
Displacement291 ci
4.8 L
Bore/Stroke3.75x4.39 inches
95 x 112 mm
Power (gross)75 hp
55.9 kW
Air cleanerdual stage dry
Compression7.5:1
Rated RPM2000
Starter volts12
Coolant capacity21 qts
19.9 L
Page information
Peter Easterlund - owner of TractorData.com
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Peter Easterlund - owner/author
Email: Peter@TractorData.com
Updated on February 6, 2024
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