WP3N Series · 2.97 L · China Stage VI
Front-Engine Bus Engine WP3N
Models: WP3NQ158E62 · WP3NQ170E62 · WP3NQ210E62
For 7-7.7 m coach buses, 7-8.5 m city buses and 8-10 m school buses
116–147 kW / 158–210 Ps
Power range (kW / Ps)
600 N·m / 1300–1600 rpm
Max torque speed (N·m / rpm)
At a glance
The WP3N comes from an original Weichai diesel engine supplier and is built as an Inline unit, with 2.97 L displacement. Rated output spans 116–147 kW (158–210 Ps). Peak torque reaches 600 N·m. It is supplied to meet China Stage VI emission requirements. Typical duty is front-engine bus service.
Product Overview
The Weichai WP3N is a new-generation high-end platform product building on the mature technology of the N series. It has passed demanding endurance evaluation in high temperature, extreme cold and high altitude, as well as on bench and drum test rigs, with B10 life of 800,000 km and outstanding reliability. Maximum power of 147 kW and maximum torque of 600 N·m give greater torque and output in its displacement class for strong starts and climbing. Modular design with compact accessory packaging and a high commonality rate across service items such as the oil filter, alternator and starter makes servicing easy and operation worry-free.
Product Advantages
- High reliability. Cast-iron cylinder head and strengthened block give a higher overall level of reinforcement, with B10 life of 800,000 km to suit different operating conditions.
- Low fuel consumption. Calibration based on real operating conditions places the common working zone close to the engine minimum fuel-consumption area, cutting vehicle fuel consumption by 1.5 L per 100 km against same-power products.
- Excellent NVH. A standard two-stage balance mechanism effectively reduces vibration and noise; noise in the common operating zone is 2.5-4 dB(A) lower, and 4 dB(A) lower at the rated point, than competing products.
- Wide adaptability. Modular design with parts common across the N platform keeps maintenance cost low.
Specifications
| Power range (kW / Ps) | 116-147/158-210 |
| Max torque speed (N·m / r/min) | 600/1300-1600 |
| Emission standard | China Stage VI |
| Fuel | Diesel |
| Engine type | Inline |
| Number of cylinders | 4 |
| Valves | 4 |
| Displacement (L) | 2.97 |
| Aspiration | Turbocharged, intercooled |
| Vehicle application | School bus |
| Engine dimensions (L×W×H) (mm) | 872×690×790 |
| Weight (G.W.) (kg) | 280 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| WP3NQ158E62 | 116/2800 | 500/1300-2200 | 2.97 | China Stage VI | Common rail + DOC + DPF + SCR | School bus | 4 | Bus | Inline | Turbocharged, intercooled |
| WP3NQ170E62 | 125/2800 | 520/1400-2100 | 2.97 | China Stage VI | Common rail + DOC + DPF + SCR | School bus | 4 | Bus | Inline | Turbocharged, intercooled |
| WP3NQ210E62 | 147/2800 | 600/1300-1600 | 2.97 | China Stage VI | Common rail + DOC + DPF + SCR | School bus | 4 | Bus | Inline | Turbocharged, intercooled |
Request a Quote
Send the model designation (for example WP3NQ158E62), the required quantity and your destination port.
Technical details
The Weichai WP3N is built on a Inline configuration with 4 cylinders and 4 valves per cylinder architecture. Displacement is 2.97 L. Intake is turbocharged, intercooled. It is offered for diesel operation. For installation planning, the unit has overall dimensions of 872×690×790 and a dry weight of 280 kg.
Typical applications
The Weichai WP3N is specified for front-engine bus duty. Confirmed applications include the following, and we can advise on suitability for your machine:
- Front-engine bus
WP3N frequently asked questions
What is the power range of the Weichai WP3N?
The WP3N covers 116–147 kW (158–210 Ps). Confirm the exact sub-model code before ordering, because output varies across the model line-up.
What peak torque does the WP3N deliver?
Maximum torque reaches 600 N·m. Torque is developed from 1300-1600 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 WP3N 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 WP3N 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 WP3N 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 WP3N?
The WP3N is built on a Inline, 4 cylinders, 2.97 L of displacement layout. Send us your machine model if you need confirmation that this layout fits your installation.