From the central plains to the western plateaus, from the extreme cold of the far north to the humid heat of the southern frontier, China's vast and complex logistics landscape serves as the world's most rigorous vehicle testing ground. It has also driven the development of the world's most advanced gas engine technology.

　　On April 10, WEICHAI Power simultaneously launched its new-generation gas engine product series—the NG 4.0 Pro—in six cities: Zhengzhou, Changchun, Xi'an, Yinchuan, Chengdu, and Jinan. The four new models, covering displacements from 13 to 16 liters, represent a comprehensive upgrade of the existing product line, once again setting a global benchmark for commercial vehicle gas powertrains through technological iteration.

Absolute Leadership: 80 Years of Technological Heritage and a Global Benchmark

　　At the launch event, Wang Decheng, Vice Chairman of WEICHAI Group and General Manager of WEICHAI Power, noted that this year marks WEICHAI's 80th anniversary. As the earliest domestic company to engage in the R&D and manufacturing of gas engines, WEICHAI has witnessed and propelled the entire journey of China's gas engine technology from its inception to its current strength, building the world's most comprehensive full-scenario gas engine product portfolio in terms of power coverage and series variety.

　　Currently, WEICHAI's global installed base of gas engines has surpassed 900,000 units, with a market share of nearly 60% in the domestic gas-powered heavy-duty truck segment, securing an absolute leadership position.

　　Wang Decheng stated that this strong performance is underpinned by WEICHAI's long-term strategic commitment to maintaining R&D investment in its engine division at over 6% of revenue. In recent years, WEICHAI has not only broken the global record for diesel engine brake thermal efficiency four times but has also established a national key laboratory for internal combustion engines and powertrain systems, as well as a world-class digital automated factory.

Core Leap: 100% Self-Developed System and Global Export

　　Facing the current profitability challenges of transporters, WEICHAI presents the NG 4.0 Pro as its solution: by delivering even more extreme fuel economy, more powerful performance, and higher reliability, it transforms the engine into a core tool for efficient profit generation.

　　To achieve "ultra-gas saving," the NG 4.0 Pro features a systematic redesign of its intake, combustion, and exhaust systems. Leveraging core technologies such as low-loss high-flow intake, high-expansion ratio combustion, and ultra-high-energy ignition, the vehicle's gas consumption per 100 kilometers is reduced by an additional 1 to 2 kilograms compared to the previous generation.

　　In terms of power response, the new technology increases engine response speed by 20%, making starts and overtaking more effortless. For reliability, the new models feature targeted deep optimizations addressing specific pain points of gas engines, such as uneven heat load on the cylinder head and susceptibility to knocking, resulting in a B10 life of 2 million kilometers.

　　An even greater leap is in the control system. In the past, domestic gas engine control often relied on foreign suppliers, posing not only a supply chain risk but also making core control logic susceptible to imitation. The newly launched NG 4.0 Pro, however, is equipped with a 100% self-developed "intelligent brain" proprietary to WEICHAI. This system enables millisecond-level precise control and offers "one vehicle, one strategy" intelligent adaptation based on regional gas quality and road conditions.

　　Full system self-sufficiency means WEICHAI has truly mastered the core technologies of gas powertrains, building a robust technological barrier. And this globally leading capability is now sparking a reverse flow of technology and product solutions.

　　WEICHAI revealed that several top-tier, established global commercial vehicle manufacturers have proactively approached WEICHAI, seeking to incorporate Chinese gas powertrain solutions into their high-end flagship platforms. This confirms that WEICHAI's leadership in gas engine technology has reached a level that commands the attention and respect of the global industry.

Precision Adaptation: Four Models Cover All Applications

　　The NG 4.0 Pro series comprises four products, achieving seamless coverage across various applications:

　　WP13NG-4.0 Pro: Focuses on extreme lightweighting, targeting the composite transport market's high sensitivity to vehicle weight. Delivers a maximum of 570 horsepower and peak torque of 2600 N·m.

　　WP14NG-4.0 Pro: Balances the needs of line-haul logistics fuel economy with heavy-load power demands. Offers 610 horsepower and peak torque of 2800 N·m. The engine weighs only 999 kg, making it 173 kg lighter than competitor models in its class.

　　WP15NG-4.0 Pro: Positioned as the core power for long-haul logistics, with a maximum of 630 horsepower and peak torque of 2800 N·m. It achieves 3% lower gas consumption during high-speed cruising compared to similar products.

　　WP16NG-4.0 Pro: Specifically engineered for extreme conditions, including plateau and mountainous terrain. Delivers 750 horsepower and peak torque of 3400 N·m, with plateau adaptability and power response surpassing comparable diesel engines, providing significant advantages in both power and fuel economy under severe operating conditions.

Full-Spectrum Support: Service Network Guarantees Full Lifecycle Value

　　Beyond product capabilities, WEICHAI extends its competitive edge to full-lifecycle service assurance. The ten exclusive service policies announced at the launch reflect its strong confidence in product quality.

　　These include: for the first owner of an NG 4.0 Pro, 5-year, unlimited-mileage extended warranty on five major foundational core components such as the cylinder block and crankshaft; within 2 years, if internal engine core components fail due to quality issues, they will be replaced rather than repaired; and within 1 year, engine faults caused by customer misoperation will be repaired free of charge.

　　These comprehensive commitments are backed by WEICHAI's extensive and mature service system: over 6,000 service stations nationwide, with an average service radius of 30 kilometers, supported by 83 parts distribution centers ensuring high parts availability, and a 7×24 hour call center capable of achieving "5-minute response, 10-minute dispatch, 30-minute departure." This well-established after-sales network is a core strength that most competitors find difficult to replicate in the short term.

On-the-Ground Testimonials: Real-World Operation Data Validates Value

　　At the launch event, customers from the frontline shared their real-world experiences with our reporter.

　　Wang Zhihui, head of Kanglian Transport Company in Wenxian County, Jiaozuo, Henan, introduced that nearly 200 of the company's owned and affiliated vehicles have been upgraded to heavy trucks equipped with WEICHAI gas engines. "From 2016 to the present, we have always chosen WEICHAI. No matter the road conditions, WEICHAI engines are durable, reliable, and deliver stable gas consumption."

　　Wang Zhihui noted that for the WP16NG 4.0-powered 720-horsepower models in their fleet operating long-haul routes to Xinjiang, the average combined gas consumption is stable at around 30 kilograms per 100 kilometers. In extreme long-haul, heavy-load scenarios, stable low gas consumption and a low failure rate are crucial for fleet profitability.

　　Zhu Hongfei, from Anhui Fuyang Zhengdong Automobile Transport Company, admitted that currently, 80% of the company's 300-plus operational vehicles are still diesel-powered, and their profit margins have been severely squeezed.

　　He began a large-scale switch to gas vehicles the year before last and, after comparison, firmly chose WEICHAI: "Under the same road conditions, WEICHAI can save 1 to 2 kilograms of gas per 100 kilometers, and its availability is also higher." His attendance at this launch was specifically to evaluate the new models for his fleet's comprehensive "oil-to-gas" transition.

　　To allow more customers to personally verify the new products' performance, WEICHAI concluded the launch event by announcing the "NG 4.0 Pro Gas Engine National Fuel Consumption Challenge," covering multiple regions and scenarios, inviting users to validate real-world operational data.

　　Against the broader backdrop of "cost reduction and efficiency enhancement" in the logistics industry, WEICHAI continues to rely on technological breakthroughs as its foundation and comprehensive services as its support. With solid data and user reputation, it consistently sets the industry benchmark in the core powertrain sector of commercial vehicles.