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








Weichai's new high-end lightweight engine platform products; power range 125-140kW, Euro IV/V/VI emissions, applied in coach and school bus.
| Maximum Power | 190 hp140 kW |
| Minimum Power | 170 hp125 kW |
| Maximum Torque / Speed | 680/(1300-1900) 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 | 4.088 L |
| Aspiration | Turbocharged and intercooled |
| Compression Ratio | 18±0.5:1 |
| Combustion System | Common rail |
| Length | 964 mm |
| Width | 700 mm |
| Height | 837 mm |
| Weight - Net Dry (Basic Operating Engine Without Optional Attachments) | 400 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
Business license