WP4.1N Series Weichai Bus Engines With Electronic Control System

Product parameters

Product advantages

• Emission standards: Euro V and Euro VI.
• Technical route: The electronically controlled high-pressure common rail system is used to ensure precise control.
• Comfort: The customized development of NVH ensures low noise and vibration.
• Light weight: Its applies a large number of cast aluminum parts and is the lightest one among those products of same power.
• Small size: The engine is smaller than competing products in size, ensuring the easy assembling in OEM.
• Electronic control system: The independent ECU control system with functions developed for light-duty trucks ensures good adaptability.
• Low-pressure circuit: It ensures electronically controlled fuel pumping, good low temperature starting performance, and strong fuel adaptability.
• Intake system: The four-valve structure guarantees high intake efficiency and more efficient combustion.
• Cooling system: The WEICHAI electromagnetic clutch fan and silicone oil clutch fan are optional, which ensure good cooling effect.

More safe and reliable

• The movement speed of moving parts is reduced, and the movement time is prolonged.
• The wear of friction pairs per unit time is reduced.
• The service life of the crankshaft flywheel system and gear system is prolonged.

Better economy

• The speed ratio of drivetrain is reduced, improving transmission efficiency.
• Fuel system: The fresh air system guarantees good reliability and excellent economy.
• The driver‘s shift schedule is improved, reducing fuel consumption.
• The rear PTO is optional.

More comfortable

• The high frequency torsional vibration zone of the engine is avoided.
• The noise reduction flywheel housing and the domestic advanced anechoic chamber are used to reduce noise.