WP4.1N series engines for city buses
Compact structure, high reliability, high power performance and excellent economy.
Compact structure, high reliability, high power performance and excellent economy.








Weichai new generation High-end Light Engine Platform Products. Power range 125-147kW, Euro V/VI emissions, applied in 7.3-7.9m road bus, 7-8m city bus, 8-10m school bus.
| Maximum Power | 200 hp147 kW |
| Minimum Power | 170 hp125 kW |
| Maximum Torque / Speed | 750/(1300-1700) N·m / r/min |
| Emissions | Euro IV/V/VI |
| Series | WP4.1N |
| Fuel | Diesel |
| Type | Inline 4-cylinder, four-stroke engine |
| Cylinder Number | 4 |
| Valve Number | 4 |
| Bore | 105 mm |
| Stroke | 118 mm |
| Displacement | 4.1 L |
| Aspiration | Turbocharged and intercooled |
| Compression Ratio | 19:1 |
| Combustion System | Common rail |
| Length | 964 mm |
| Width | 700 mm |
| Height | 837 mm |
| Weight - Net Dry (Basic Operating Engine Without Optional Attachments) | 390 kg |
Remarks: Product parameters and pictures are for reference only; subject to change without notice.
| Model | Rated Power/ Speed (kW/rpm) |
Maximum Torque (N·m/rpm) |
Displacement (L) |
Emission | Technique Route | Adaptable Vehicle |
|---|---|---|---|---|---|---|
| - | - | - | - | - | - | - |
37070002001028
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