WP8H Series · 8.2 L · China Stage VI / Euro VI / Euro V / Euro III
Rear-Engine Bus Engine WP8H
Models: WP8H360E62 · WP8H320E62 · WP8H320E50 · WP8H360E58 · WP8H380E58 · WP8H320E30 · WP8H360E30 · WP8H380E30
For 11 m to 12 m rear-engine buses
235–279 kW / 320–380 Ps
Power range (kW / Ps)
1600 N·m / 1200–1600 rpm
Max torque speed (N·m / rpm)
At a glance
The WP8H comes from an original Weichai diesel engine supplier and is built as an Inline unit, with 8.2 L displacement. Rated output spans 235–279 kW (320–380 Ps). Peak torque reaches 1600 N·m. It is supplied to meet Euro VI emission requirements. Typical duty is rear-engine bus service.
Product Overview
The WP8H continues the mature high-end Weichai power platform, validated by endurance testing in the most extreme high-temperature, cold and high-altitude environments, with strong overall stability and market-proven reliability. Its low-speed high-torque design gives an outstanding peak-torque figure with ample power for starts and mountain climbs, suiting every complex operating duty. A highly modular layout with a high degree of parts commonality and extended oil-change intervals keeps maintenance simple and the cost of use lower.
Product Advantages
- Advanced design. A modular layout with topology-optimised manufacturing brings the mass per litre down to 81.2 kg/L and the engine weight to only 666 kg, a clear lightweighting advantage.
- Robust and durable. Vermicular-graphite iron block, forged steel crankshaft and a high-strength structure that withstands peak firing pressure of 25 MPa.
- Strong power. Torque above 1,500 N·m at 1000 r/min and maximum torque of 1,600 N·m, with the capability to upgrade to 1,800 N·m.
Specifications
| Power range (kW / Ps) | 235-279/320-380 |
| Max torque speed (N·m / r/min) | 1600/1200-1600 |
| Emission standard | China Stage VI / Euro VI / Euro V / Euro III |
| Fuel | Diesel |
| Engine type | Inline |
| Number of cylinders | 6 |
| Valves | 4 |
| Displacement (L) | 8.2 |
| Aspiration | Turbocharged, intercooled |
| Vehicle application | Coach, tourism, fleet |
| Engine dimensions (L×W×H) (mm) | 1233×809×943 |
| Weight (G.W.) (kg) | 683 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| WP8H360E62 | 265/2100 | 1600/1200-1600 | 8.2 | China Stage VI, Euro VI | Common rail + DOC + DPF + SCR | Coach, tourism, fleet | 4 | Bus | Inline | Turbocharged, intercooled |
| WP8H320E62 | 235/2100 | 1280/1100-1700 | 8.2 | China Stage VI, Euro VI | Common rail + DOC + DPF + SCR | Coach, tourism, fleet | 4 | Bus | Inline | Turbocharged, intercooled |
| WP8H320E50 | 235/2100 | 1280/1100-1700 | 8.2 | Euro V | Common rail + SCR | Coach, tourism, fleet | 4 | Bus | Inline | Turbocharged, intercooled |
| WP8H360E58 | 265/2100 | 1400/1200-1600 | 8.2 | Euro V | Common rail + SCR | Coach, tourism, fleet | 4 | Bus | Inline | Turbocharged, intercooled |
| WP8H380E58 | 279/2100 | 1600/1200-1600 | 8.2 | Euro V | Common rail + SCR | Coach, tourism, fleet | 4 | Bus | Inline | Turbocharged, intercooled |
| WP8H320E30 | 235/2100 | 1280/1100-1700 | 8.2 | Euro III | Common rail | Coach, tourism, fleet | 4 | Bus | Inline | Turbocharged, intercooled |
| WP8H360E30 | 265/2100 | 1400/1200-1600 | 8.2 | Euro III | Common rail | Coach, tourism, fleet | 4 | Bus | Inline | Turbocharged, intercooled |
| WP8H380E30 | 279/2100 | 1600/1200-1600 | 8.2 | Euro III | Common rail | Coach, tourism, fleet | 4 | Bus | Inline | Turbocharged, intercooled |
Request a Quote
Send the model designation (for example WP8H360E62), the required quantity and your destination port.
Technical details
The Weichai WP8H is built on a Inline configuration with 6 cylinders and 4 valves per cylinder architecture. Displacement is 8.2 L. Intake is turbocharged, intercooled. It is offered for diesel operation. For installation planning, the unit has overall dimensions of 1233×809×943 and a dry weight of 683 kg.
Typical applications
The Weichai WP8H is specified for rear-engine bus duty. Confirmed applications include the following, and we can advise on suitability for your machine:
- Rear-engine bus
WP8H frequently asked questions
What is the power range of the Weichai WP8H?
The WP8H covers 235–279 kW (320–380 Ps). Confirm the exact sub-model code before ordering, because output varies across the model line-up.
What peak torque does the WP8H deliver?
Maximum torque reaches 1600 N·m. Torque is developed from 1200-1600 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 WP8H meet?
This unit is offered to Euro VI. Tell us your destination market and we will confirm the certification route before shipment.
Is the WP8H 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 WP8H 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 WP8H?
The WP8H is built on a Inline, 6 cylinders, 8.2 L of displacement layout. Send us your machine model if you need confirmation that this layout fits your installation.