
WP13 Series · 12.54 L · China Stage VI
Crane Engine WP13
Models: WP13.550E62
For 300-450 t cranes
405 kW / 550 Ps
Power range (kW / Ps)
2500 N·m / 950–1400 rpm
Max torque speed (N·m / rpm)



At a glance
The WP13 comes from an original Weichai diesel engine supplier and is built as an Inline unit, with 12.54 L displacement. Rated output spans 405 kW (550 Ps). Peak torque reaches 2500 N·m. It is supplied to meet China Stage VI emission requirements. Typical duty is crane service.
Product Overview
Lanqing platform heritage: a mature large-displacement heavy-duty engine in China with strong power, high efficiency and high reliability.
Product Advantages
- Very high reliability. Frame-type block and dry cylinder liners with a high degree of strengthening; more than 45,000 h of bench testing and over 50,000,000 km of vehicle road testing accumulated.
- Excellent NVH. Noise 2-3 dB(A) below competing products: a drum-shaped block skirt gives a stiff, low-vibration block that greatly cuts noise; a rear gear train with high-precision shear gears runs smoothly and further reduces mechanical noise; multiple-injection technology greatly reduces combustion noise.
- Very low fuel consumption. Multiple high-efficiency measures – optimised combustion, revised camshaft profile and a high-efficiency turbocharger – give a low fuel consumption rate, with common-condition fuel consumption 3%-5% below competing products; the low-consumption band covers the 950-1400 r/min working range, making it more economical.
- Strong power. Maximum torque 2500 N·m suits most operating conditions in China, overtaking and acceleration are good, and a smaller rear-axle ratio can be chosen while still keeping the power.
Specifications
| Power range (kW / Ps) | 405/550 |
| Max torque speed (N·m / r/min) | 2500/950-1400 |
| Emission standard | China Stage VI |
| Fuel | Diesel |
| Engine type | Inline |
| Number of cylinders | 6 |
| Valves | 4 |
| Displacement (L) | 12.54 |
| Aspiration | Turbocharged, intercooled |
| Vehicle application | 300-450 t truck crane |
| Engine dimensions (L×W×H) (mm) | 1556×817×1094 |
| Weight (G.W.) (kg) | 1060±50 |
Note: product parameters and images are for reference only and are subject to change without notice.
Model Line-up
| Model | Rated power / speed (kW / rpm) | Max torque / speed (N·m / rpm) | Displacement (L) | Emission standard | Technology route | Application | Valves | Use | Type | Aspiration |
|---|---|---|---|---|---|---|---|---|---|---|
| WP13.550E62 | 405/1900 | 2500/950-1400 | 12.54 | China Stage VI | DOC+DPF+SCR+ASC | 300-450 t truck crane | 4 | crane | Inline 6-cylinder, four-stroke engine | Turbocharged, intercooled |
Request a Quote
Send the model designation (for example WP13.550E62), the required quantity and your destination port.
Technical details
The Weichai WP13 is built on a Inline configuration with 6 cylinders and 4 valves per cylinder architecture. Displacement is 12.54 L. Intake is turbocharged, intercooled. It is offered for diesel operation. For installation planning, the unit has overall dimensions of 1556×817×1094 and a dry weight of 1060±50 kg.
Typical applications
The Weichai WP13 is specified for crane duty. Confirmed applications include the following, and we can advise on suitability for your machine:
- Crane
WP13 frequently asked questions
What is the power range of the Weichai WP13?
The WP13 covers 405 kW (550 Ps). Confirm the exact sub-model code before ordering, because output varies across the model line-up.
What peak torque does the WP13 deliver?
Maximum torque reaches 2500 N·m. Torque is developed from 950-1400 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 WP13 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 WP13 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 WP13 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 WP13?
The WP13 is built on a Inline, 6 cylinders, 12.54 L of displacement layout. Send us your machine model if you need confirmation that this layout fits your installation.

