| Model | YSD490D | Y490D |
|---|---|---|
| Type | Vertical, Water Cooling, Four Stroke | |
| Combustion Chamber Type | Direct Injector | |
| Number of Cylinders | 4 | 4 |
| Bore (mm) | 90 | 90 |
| Stroke (mm) | 100 | 105 |
| Compression Ration | 18 | 18 |
| Total Displacement (L) | 2.54 | 2.67 |
| Firing Order | 1-3-4-2 | 1-3-4-2 |
| Rated Power (kW) | 21 / 1500 | 24 / 1500 |
| 25 / 1800 | 28 / 1800 | |
| Intake Type | Natural Aspiration | |
| Cooling Method | Forced Watercooling | |
| Starting Method | Electric | |
| Flywheel Size | SAE 7.5 | |
| Bell Housing Size | SAE4 | |
| Net Mass | 230 | 240 |
| Overall Dimensions (LxWxH)(mm) | 716 x 530 x 670 | 716 x 530 x 670 |
| Designation | YSD490D | Y490D | |
|---|---|---|---|
| Fuel Injection Pump | Type | BQ Pump | |
| Governor | All-speed, Mechanical Centrifugal | ||
| Fuel Delivery Pump | Single-Acting Piston Type | ||
| Fuel Injector | Model | S Series | |
| Diameter of Nozzle (mm) | 0.255 | ||
| Injection Pressure (Mpa) | 19.6+1 | ||
| Lube Pump | Model | Rotor Type | |
| Speed (r/min) | 1500 | ||
| Capacity (L/min) | 37.5 | ||
| Type | 400 | ||
| Water Pump | Model | Centrifugal, Volute, Single-Suction | |
| Speed (r/min) | 4000 | ||
| Capacity (L/min) | 270 | ||
| Type | Silicon Rectifying Shunt Dynamo | ||
| Starting Motor | Model | QDJ1329D | |
| Voltage (V) | 12 | ||
| Power (kW) | 3.5 | ||
| Model | JFWZ13 | JFW24X | |
| Voltage (V) | 14 | 28 | |
| Power (W) | 350 | 500 | |
| Fuel Filter | Type | Single Stage, Paper Element | |
| Model | CXZ0708A | ||
| Lube Oil Filter | Type | Single Stage, Paper Element | |
| Model | JX0810 | JX0810K | |
