WP12 Series · 11.5 L · China Stage VI
WP12 Engine for Truck Tractors
Models: WP12.400E62 · WP12.430E62 · WP12.460E62
For 6×4 tractors
294–338 kW / 400–460 Ps
Power range (kW / Ps)
2200 N·m / 1000–1400 r/min
Max torque speed (N·m / r/min)
At a glance
The WP12 comes from an original Weichai diesel engine supplier and is built as an Inline unit, with 11.5 L displacement. Rated output spans 294–338 kW (400–460 Ps). Peak torque reaches 2200 N·m. It is supplied to meet China Stage VI emission requirements. Typical duty is truck tractor service.
Product Overview
A classic product of the Weichai Lanqing engine family, meeting China Stage VI emission regulations, with power delivery, fuel economy and reliability claimed superior to comparable competing products.
Product Advantages
- Fuel efficient. At the same vehicle speed the engine speed matching point is 200 r/min lower, reducing friction work and cutting engine fuel consumption.
- Reliable and safe. WCBS is standard fitment, braking power reaches 254 kW at the highest, and engine B10 life exceeds 1,800,000 km.
- Convenient aftersales. Modular design with a high rate of accessory commonality with the WP13 series, so maintenance and service are convenient.
Specifications
| Power range (kW / Ps) | 294-338/400-460 |
| Max torque speed (N·m / r/min) | 2200/1000-1400 |
| Emission standard | China Stage VI |
| Fuel | Diesel |
| Engine type | Inline |
| Number of cylinders | 6 |
| Valves | 4 |
| Displacement (L) | 11.5 |
| Aspiration | Turbocharged, intercooled |
| Vehicle application | Truck tractor |
| Engine dimensions (L×W×H) (mm) | 1611×817×1094 |
| Weight (G.W.) (kg) | 1000 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| WP12.400E62 | 294/1900 | 2000/1000-1400 | 11.5 | China Stage VI | CR+DOC+DPF+Hi-SCR | Truck tractor | 4 | Truck | Inline | Turbocharged, intercooled |
| WP12.430E62 | 316/1900 | 2100/1000-1400 | 11.5 | China Stage VI | CR+DOC+DPF+Hi-SCR | Truck tractor | 4 | Truck | Inline | Turbocharged, intercooled |
| WP12.460E62 | 338/1900 | 2200/1000-1400 | 11.5 | China Stage VI | CR+DOC+DPF+Hi-SCR | Truck tractor | 4 | Truck | Inline | Turbocharged, intercooled |
Request a Quote
Send the model designation (for example WP12.400E62), the required quantity and your destination port.
Technical details
The Weichai WP12 is built on a Inline configuration with 6 cylinders and 4 valves per cylinder architecture. Displacement is 11.5 L. Intake is turbocharged, intercooled. It is offered for diesel operation. For installation planning, the unit has overall dimensions of 1611×817×1094 and a dry weight of 1000 kg.
Typical applications
The Weichai WP12 is specified for truck tractor duty. Confirmed applications include the following, and we can advise on suitability for your machine:
- Truck
WP12 frequently asked questions
What is the power range of the Weichai WP12?
The WP12 covers 294–338 kW (400–460 Ps). Confirm the exact sub-model code before ordering, because output varies across the model line-up.
What peak torque does the WP12 deliver?
Maximum torque reaches 2200 N·m. Torque is developed from 1000-1400 r/min. This figure governs how the machine pulls away from low engine speed, so check it against your gearbox ratios and duty cycle.
Which emission standard does the WP12 meet?
This unit is offered to China Stage VI. Tell us your destination market and we will confirm the certification route before shipment.
Is the WP12 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 WP12 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 WP12?
The WP12 is built on a Inline, 6 cylinders, 11.5 L of displacement layout. Send us your machine model if you need confirmation that this layout fits your installation.