Bảng thông số kỹ thuật của động cơ diesel Huichai N490B
| Model | N490B |
| Engine Type | 4 Cylinders, Inline, 4-Stroke, Water Cooling, Direct Injection |
| Air Intake Type | Natural Aspiration |
| Firing Order | 1-3-4-2 |
| Bore × Strokemm | 90×105 |
| Piston DisplacementL | 2.672 |
| Rated PowerKW | 42 |
| Rated Speedr/min | 3000 |
| Compression Ratio | 18：1 |
| Minimum Idling Stable Rotationr/min | ≤750 |
| Stable Adjustment Rate% | ≤5 |
| Minimum BSFC at Full Loadg/kwh | 238 |
| Consumption Rate of Oil and Fuel% | ≤0.5 |
| Rotation Direction of Crankshaft (Facing Flywheel) | Anti-clockwise |
| Lubrication Mode | Pressure Lubrication & Splash Lubrication |
| Cooling Mode | Forced Circulation Water Cooling |
| Starting Mode | Electric Starter |
| Dimension：Length × Width ×Heightmm | 720×568×700 |
| Net Weightkg | ≤260 | ≤275 |
