On April 10, Weichai Power unveiled its new NG4.0 Pro natural gas power products at simultaneous launch events in six cities: Zhengzhou, Changchun, Xi'an, Yinchuan, Chengdu, and Jinan. This multi-city event spanned the nation, introducing four new gas-powered models: the 13L, 14L, 15L, and 16L. As an advanced iteration of the NG4.0 platform, the new products achieve comprehensive improvements in power, reliability, and comfort. With core advantages of "superior strength, exceptional economy, and ultra-high efficiency," they once again redefine industry benchmarks for gas power.
Building on a legacy of innovation, Weichai has consistently set the rules in the gas power sector rather than following others. Beginning in the 1990s, the company pioneered gas engine development and manufacturing. In 2005, Weichai launched its first natural gas engine, the WP10NG, filling a market gap for high-power natural gas engines in China. Continuous R&D investment enabled breakthroughs from China V to China VI emission standards. Through nearly three decades and four product generations, Weichai has established a formidable technological barrier in the gas power field.
The newly released NG4.0 Pro offers comprehensive upgrades over the NG4.0 base model. With superior fuel economy, it precisely meets the needs of various segments, including composite transport, trunk line logistics, and operations in mountainous or high-altitude regions, providing customized clean power solutions.
The WP13NG-4.0 Pro, with a 13.3L displacement, delivers 520-570 horsepower and a maximum torque of 2600 N·m. Its lightweight design enhances both power and fuel efficiency, making it a new benchmark for composite transport.
The WP14NG-4.0 Pro, with a 14L displacement, offers 566-610 horsepower and 2800 N·m of torque. Its excellent fuel economy makes it ideal for standard-load trunk line and resource transport.
The WP15NG-4.0 Pro, displacing 14.6L, provides 560-630 horsepower and 2800 N·m of torque. Its strong performance and stability make it a core choice for logistics transport.
The WP16NG-4.0 Pro, with a 15.7L displacement, delivers 640-750 horsepower and 3400 N·m of torque. Designed for high-altitude and mountainous terrain, it offers quick response, fuel savings, and durability, leading the trend in high-horsepower gas power technology.
Leveraging global resources, the NG4.0 Pro achieves breakthrough innovations in turbocharging, combustion control, and other core areas, resulting in dual leaps in power performance and reliability, while also improving comfort and autonomy.
In terms of power and fuel economy, the NG4.0 Pro incorporates a dual overhead camshaft and a specialized combustion chamber. Combined with three key technologies—low-loss high-flow intake, low-disturbance pulse turbocharging, and rapid combustion—power response is improved by 20%. Additional core technologies further reduce fuel consumption by 1-2 kg per 100 kilometers.
For reliability, advanced optimizations to key components, including stress-coordinated cylinder head design, efficient cooling, and low-knock control, ensure a B10 life of 2 million kilometers. Parts commonality reaches 90%, reducing maintenance costs, while the lifespan of high-value components is extended by 40%, lowering long-term operating expenses.
Comfort is enhanced by more than 40% through improved intake silencing, combustion noise control, and exhaust noise suppression.
Notably, the NG4.0 Pro features a dedicated smart control system that allows millisecond-level adjustments, adapting to different gas sources and operating conditions for optimized, efficient performance.
Beyond product excellence, Weichai supports the NG4.0 Pro with comprehensive service policies. Ten exclusive service policies cover warranty, repair, rescue, and parts, leading the industry. Initial buyers between April 1 and July 1, 2026, receive a 5-year warranty, with key components covered for five years regardless of mileage. A "replace, don't repair" policy applies to core components within two years. Free emission-related repair labor is offered for up to 8 years or 1 million kilometers, and free rescue services are provided within two years.
Weichai's support network includes service stations within an average radius of 30 km, 83 parts distribution centers, and 24/7 service with rapid response times. Dedicated technical teams ensure minimal downtime.
A new TCO package and exclusive benefits for major clients further help users manage lifecycle costs.
The launch of the NG4.0 Pro not only upgrades Weichai's product lineup but also aligns with China's energy transition and commercial vehicle market demands, reinforcing the company's leadership in gas power.
Weichai has over 900,000 gas engines in operation globally, holding nearly 60% market share in gas heavy-duty truck engines. Its 13L and 15L gas tractor engines are industry leaders, recognized for power, durability, and efficiency.
Recent international events have widened the gap between oil and gas prices, boosting demand for natural gas vehicles. The NG4.0 Pro launch enhances Weichai's gas engine platform, achieving breakthroughs in core technologies and showcasing China's independent innovation in commercial vehicle power.
At the event, Weichai also launched a national fuel economy challenge for the NG4.0 Pro, with follow-up activities including real-world testing and ambassador competitions to demonstrate product value through actual operating data.
At a pivotal moment of energy transition and industrial transformation, Weichai remains committed to market-driven R&D, advancing toward a greener, smarter, and more efficient future for logistics.
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