Overview
New generation of Weichai “Sharp Power”, low noise level and excellent vibration dampening effect. Power range: 103-120kW. Euro IV/V emission standards. Application: light-duty trucks of category N2 and N3.
Power Rating
| Maximum Power |
120 kW |
| Minimum Power |
103 kW |
| Maximum Torque / Speed |
560/（1200-1800） N.m / r/min |
Emission Standards
General
| Series |
WP4.1 |
| Fuel |
Diesel |
| EngineType |
Inline 4-cylinder, four-stroke engine |
| Cylinder Number |
4 |
| Valve Number |
2 |
| Bore |
105 mm |
| Stroke |
118 mm |
| Displacement |
4.1 L |
| Aspiration |
Turbocharged and intercooled |
| Compression Ratio |
17.5:1 |
| Combustion System |
Electronically controlled high-pressure common-rail |
Engine Dimensions
| Length |
970 mm |
| Width |
700 mm |
| Height |
798 mm |
| Weight - Net Dry |
400 kg |
High reliability
- High durability: Designed using the design philosophy of heavy-duty engines. Highly reliable.
- B10 life is up to 800,000km.
Modular design
- High universality: Many parts of WP3.7 series engines may be directly used for WP4.1 series engines, and the two series have the same installation interface, delivering great convenience for repair and maintenance.
- High suitability: Equipped with multiple generator and the 430cc air conditioner, adding convenience for in-vehicle arrangement.
Lightweighted design
- Engine weight only 400kg. Due to enormous CAE analysis capability, high strength and reliability are ensured with design optimized.
- A good many parts such as flywheel housing, water pump, oil sump, rocker arm cover, and intake pipe are made of plastic or aluminum alloy.
Excellent NVH performances
- Engine body reinforcement rib, silicone oil clutch-equipped fan, high-accuracy gears, as well as combustion optimization design reduce further engine noise and vibration.
Ultra-low fuel consumption
- Minimum fuel consumption is 196g/kW•h, which is 2~3g/kW•h lower than that of competing products.
- Engine speed range for economical fuel consumption is extended to 1,100-1,800rpm.
More powerful
- Excellent climbing performance and overtaking capacity: Maximum torque 520N.m and reserved torque up to 30%.
- High driving-off and acceleration performances: Optimized turbocharger design, and great torque at low engine speed (Torque 470N.m at engine speed 1,000 rpm; Maximum torque 560N.m).
High adaptability
- No power loss up to altitude 2,800 meters. Super low power loss under general operation conditions up to altitude 4,500 meters.
- No start failure with ambient temperature below -20°C.
Good adaptability
- Small package and light weight, ideal power choice for trucks having a wheel base of 3.8-5.2m.
- Oil sump can be installed in the front or rear, depending on in-vehicle arrangement requirement.
