| Engine Detail | |
| International Harvester | |
| diesel | |
| 4-cylinder | |
| liquid-cooled vertical I-head | |
| Displacement | 334.5 ci 5.5 L |
| Bore/Stroke | 4.40x5.50 inches 112 x 140 mm |
| Power | 49.5 hp (early) 36.9 kW |
|   | 51.5 hp (late) 38.4 kW |
| Air cleaner | oil bath |
| Compression | 15.7:1 |
| Rated RPM | 1400 |
| Idle RPM | 500-1555 |
| Operating RPM | 900-1400 |
| Firing order | 1-3-4-2 |
| Starter volts | 12 |
| Oil capacity | 11 qts 10.4 L |
| Coolant capacity | 52 qts 49.2 L |
| International Harvester TD-9 Engine | |
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| Page information | |
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| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on September 20, 2022 |