| Engine Detail | |
| John Deere 4045HAT80 | |
| turbocharged aftercooled diesel | |
| 4-cylinder | |
| liquid-cooled | |
| Displacement | 275.5 ci 4.5 L |
| Bore/Stroke | 4.19x5.00 inches 106 x 127 mm |
| Emissions | Stage IIIA |
| Power | 90 hp 67.1 kW |
| Compression | 19.0:1 |
| Rated RPM | 2300 |
| Torque | 269.2 lb-ft 365.0 Nm |
| Torque RPM | 1600 |
| Firing order | 1-3-4-2 |
| Starter | electric |
| Starter volts | 12 |
| Starter power | 3.8 hp 2.8 kW |
| Coolant capacity | 11 qts 10.4 L |
|   | 13.7 qts (cab) 13.0 L |
| Coolant change | 2000 h |
| Intake valve clearance | 0.014 inches 0.356 mm |
| Exhaust valve clearance | 0.018 inches 0.457 mm |
| Engine Oil | |
| |
| Oil capacity | 8.5 qts 8.0 L |
| Oil change | 500 h |
| John Deere 5090G Engine | |
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| Page information | |
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| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on March 12, 2015 |