| Model | QC380Q(DI) | QC385Q(DI) | N485QA | QC490Q |
| Type | Vertical , in -line , water -cooled , Four -stroke , Direct injection | |||
| Cyliner NO-Bore&Stroke | 3-80*90 | 3-85*90 | 4-85*95 | 4-90*105 |
| Displacement (L) | 1.357L | 1.532L | 1.809L | 2.516L |
| Cylinder liner type | WET | DRY | DRY | WET |
| Intake way | Natural intake | |||
| Rated output( kw/r/min) | 20/3000 | 23/3000 | 29/3000 | 34.5/3000 |
| Rated output(N.m/r/min) | 71/2100 | 82/2100 | 103/2100 | 123/2100 |
| The minimum fuel consumption ratio | <=248 | <=248 | <=240 | <=235 |
| Flywheel cover type | SAE7.5'' | |||
| Flywheel type | SAE4# | |||
| Diameter of exhuaust fan | Φ410 | |||