WP15NG Series · 14.5 L · Natural Gas · China Stage VI
WP15NG Natural Gas Engine for Truck Tractors
Models: WP15NG530E61 · WP15NG560E61 · WP15NG590E61
For 6×4 tractors
390–434 kW / 530–590 Ps
Power range (kW / Ps)
2600 N·m / 950–1350 r/min
Max torque speed (N·m / r/min)
At a glance
Supplied by an original Weichai diesel engine supplier, the Weichai WP15NG Natural Gas is built as an Inline unit, with 14.5 L displacement. Rated output spans 390–434 kW (530–590 Ps). Peak torque reaches 2600 N·m.
Product Overview
Maximum power of 590 Ps and maximum torque of 2,600 N·m, with torque per litre of 178 N·m/L for a more generous power delivery. Separated intake and exhaust structures give strong adaptability; power covers 390-434 kW, meeting China Stage VI emissions, for 6×4 high-speed logistics truck tractors.
Product Advantages
- Low gas consumption. A continuous-flow injection system controls the air/fuel ratio precisely, and the combined design of pulsed exhaust and a high-efficiency turbocharger gives fuller intake and freer exhaust; gas consumption per 100 km is claimed about 2 kg lower than same-power products.
- Reliability technology. Exhaust-manifold stress relief, strengthened cylinder-head cooling, knock monitoring, intelligent combustion control, anti-surge protection and long service-interval technology.
- Lightweight design. Modular architecture with an integrated charge-air-cooling module and a floating polymer rocker cover, plus new-material parts such as a cast-aluminium flywheel housing.
- Excellent NVH. A rear gear train, drum-shaped block skirt design and standard reinforced webs further reduce vibration and noise, claimed 2-3 dB(A) lower than competing products.
- Strong power. Torque raised to 2,600 N·m with torque per litre of 178 N·m/L.
- Updated appearance. Family styling with tidier water, gas and electrical routing.
Specifications
| Power range (kW / Ps) | 390-434/530-590 |
| Max torque speed (N·m / r/min) | 2600/950-1350 |
| Emission standard | China Stage VI |
| Fuel | Natural gas |
| Engine type | Inline |
| Number of cylinders | 6 |
| Valves | 4 |
| Displacement (L) | 14.5 |
| Aspiration | Turbocharged, intercooled |
| Vehicle application | Truck tractor |
| Engine dimensions (L×W×H) (mm) | 1350×1108×1114 |
| Weight (G.W.) (kg) | 1050 |
Note: product parameters and images are for reference only and are subject to change without notice.
Model Line-up
| Model | Rated power / speed (kW / r/min) | Max torque / speed (N·m / r/min) | Displacement (L) | Emission standard | Technology route | Application | Valves | Use | Type | Aspiration |
|---|---|---|---|---|---|---|---|---|---|---|
| WP15NG530E61 | 390/1700 | 2500/950-1350 | 14.5 | China Stage VI | Stoichiometric + EGR + TWC | Truck tractor | 4 | Truck | Inline | Turbocharged, intercooled |
| WP15NG560E61 | 412/1700 | 2600/950-1350 | 14.5 | China Stage VI | Stoichiometric + EGR + TWC | Truck tractor | 4 | Truck | Inline | Turbocharged, intercooled |
| WP15NG590E61 | 434/1800 | 2600/950-1350 | 14.5 | China Stage VI | Stoichiometric + EGR + TWC | Truck tractor | 4 | Truck | Inline | Turbocharged, intercooled |
Request a Quote
Send the model designation (for example WP15NG530E61), the required quantity and your destination port.
Technical details
The Weichai WP15NG Natural Gas is built on a Inline configuration with 6 cylinders and 4 valves per cylinder architecture. Displacement is 14.5 L. Intake is turbocharged, intercooled. It is offered for natural gas operation. For installation planning, the unit has overall dimensions of 1350×1108×1114 and a dry weight of 1050 kg.
Typical applications
The Weichai WP15NG Natural Gas is specified for duty. Confirmed applications include the following, and we can advise on suitability for your machine:
- Truck
WP15NG Natural Gas frequently asked questions
What is the power range of the Weichai WP15NG Natural Gas?
The WP15NG Natural Gas covers 390–434 kW (530–590 Ps). Confirm the exact sub-model code before ordering, because output varies across the model line-up.
What peak torque does the WP15NG Natural Gas deliver?
Maximum torque reaches 2600 N·m. Torque is developed from 950-1350 r/min. This figure governs how the machine pulls away from low engine speed, so check it against your gearbox ratios and duty cycle.
Is the WP15NG Natural Gas a genuine Weichai engine?
Yes. Units are sourced through controlled supply channels to original factory specification and are supplied with export packing and documentation.
How is the WP15NG Natural Gas shipped and how long does delivery take?
Engines are crated for export and consolidated at the port. Send your model designation, quantity and destination port for a firm quotation and lead time.
What is the configuration of the WP15NG Natural Gas?
The WP15NG Natural Gas is built on a Inline, 6 cylinders, 14.5 L of displacement layout. Send us your machine model if you need confirmation that this layout fits your installation.