John Deere 644A Engine
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| Engine Detail | |
| John Deere | |
| turbocharged diesel | |
| 6-cylinder | |
| liquid-cooled | |
| Displacement | 404 ci 6.6 L |
| Bore/Stroke | 4.25x4.75 inches 108 x 121 mm |
| Power (net) | 131 hp 97.7 kW |
| Power (gross) | 141 hp 105.1 kW |
| Compression | 16.5:1 |
| Rated RPM | 2400 |
| Torque | 345 lb-ft 467.8 Nm |
| Torque RPM | 1600 |
| Starter | electric |
| Starter volts | 12 |
| Oil capacity | 17 qts 16.1 L |
| Coolant capacity | 36 qts 34.1 L |
| Page information | |
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| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on September 9, 2021 |