Weichai Diesel Engine
Weichai WP9H336E50
Weichai WP9H336E50 diesel engine: 247 kW @ 1900 rpm, 1600 Nm @ 1000-1400 rpm, 8.8 L, Euro V. For port tractors and 8×4 cargo trucks. Shipped worldwide.
Introduction
A new-generation Weichai engine meeting Euro V/VI emission standards, used in port tractors.
Features
High reliability
- Heavily reinforced design with a large safety margin: more than 15,000 hours of bench testing and more than 50 million km of road testing.
- Service life above 1.8 million km or 30,000 hours.
Modular design
- Integrated modules cut the part count by more than 30%.
- Fuel filter module combines the primary and fine filters.
- Oil filter module combines the oil filter, oil cooler, centrifugal filter and coolant filter.
- One-piece cylinder head with an integrated intake manifold keeps the engine compact.
Lightweight design
- Complete engine weighs only 805 kg, optimized by CAE analysis without giving up strength or reliability.
Intelligent control
- Weichai's own ECU, developed in-house, with fast, high-precision air-system control.
- Multi-level control strategy for overall performance.
Low noise and vibration
- Noise below 96 dB(A) at 1 m at the rated power point; the drum-shaped block skirt is strong and low in vibration, which greatly reduces noise.
- Rear gear train with high-precision scissor gears runs steadily and further reduces mechanical noise.
- Multiple-injection technology significantly reduces combustion noise.
Powerful
- A smaller rear-axle ratio can be used without loss of performance, further reducing fuel consumption.
Low fuel consumption
- Minimum fuel consumption of 181 g/(kW·h).
- The economical low-speed range covers typical truck operating speeds.
Adaptability
- No power loss at 2,800 m altitude, and very low power loss at 4,500 m under typical operating conditions.
- Starts reliably at -20°C.
Main Parameters
| Model | WP9H336E50 |
|---|---|
| Power / speed (kW / rpm) | 247/1900 |
| Max torque / speed (Nm / rpm) | 1600/1000-1400 |
| Displacement (L) | 8.8 |
| Emission standard | Euro V |
| Fuel system | common rail + SCR |
| Air intake | Turbocharged and intercooled |
| Applications | port tractor/8×4 Cargo truck/8×4 dump truck/mixer truck, etc. |
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