International Harvester 3688 Engine


International Harvester 3688 tractor photo
1981 - 1985
30 Series
Row-Crop tractor
Series map:
3488
3688
124.4hp*
125.6hp*
*Estimated engine power for comparison only.
Engine Detail
International Harvester D436
diesel
6-cylinder
liquid-cooled
Displacement436 ci
7.1 L
Bore/Stroke4.30x5.00 inches
109 x 127 mm
Air cleanerdual dry elmeent
Compression16:1
Rated RPM2400
Idle RPM900-2400
Starter volts12
Coolant capacity26 qts
24.6 L
Engine Oil
3688 diesel engine oil chart
Oil capacity14 qts
13.2 L
Page information
Peter Easterlund - owner of TractorData.com
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Peter Easterlund - owner/author
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Updated on March 25, 2022
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