
WP4.6N Series · 4.58 L · China Non-Road Stage IV
Harvester Engine WP4.6N
Models: WP4.6NG190E474C · WP4.6NG200E474C · WP4.6NG210E470C · WP4.6NG220E473C · WP4.6NG240E470C
For wheat and corn combines
140–176 kW / 190–240 Ps
Power range (kW / Ps)
867 N·m / 1700 rpm
Max torque speed (N·m / rpm)



At a glance
As an original Weichai diesel engine supplier, we supply the WP4.6N built as an Inline unit, with 4.58 L displacement. Rated output spans 140–176 kW (190–240 Ps). Peak torque reaches 867 N·m. It is supplied to meet China Non-Road Stage IV emission requirements. Typical duty is harvester service.
Product Overview
The WP4.6N harvester engine offers strong power, high reliability and excellent economy; output covers 140-176 kW.
Product Advantages
- High reliability. Purpose-strengthened design of the highly reliable block, crank-connecting rod mechanism and shaft train for agricultural duty, giving proven durability.
- Strong power. Developed specifically for agricultural duty with high output and ample torque reserve, meeting power demands across all working conditions for higher work efficiency.
- Efficient and economical. Electronically controlled high-pressure common-rail injection, a high-efficiency turbocharging system, low-friction design and other advanced technologies such as high-efficiency, low-heat-rejection combustion deliver excellent fuel economy; an optional reduced-speed configuration widens the fuel-consumption advantage further.
- Good comfort. Pilot-injection technology, high-precision meshing gear trains and an optional second-stage balance mechanism reduce engine vibration and noise for better comfort.
Specifications
| Power range (kW / Ps) | 140-176/190-240 |
| Max torque speed (N·m / r/min) | 867/1700 |
| Emission standard | China Non-Road Stage IV |
| Fuel | Diesel |
| Engine type | Inline |
| Number of cylinders | 4 |
| Valves | 4 |
| Displacement (L) | 4.58 |
| Aspiration | Turbocharged, intercooled |
| Vehicle application | Wheat combine, corn combine |
| Engine dimensions (L×W×H) (mm) | 990×730×835 |
| Weight (G.W.) (kg) | 450±10 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| WP4.6NG190E474C | 140/2200 | 790/1800 | 4.58 | China Non-Road Stage IV | DOC+DPF+SCR+ASC | Wheat combine, corn combine | 4 | Harvester | Inline, water-cooled, four-stroke, direct injection | Turbocharged, intercooled |
| WP4.6NG200E474C | 147/2200 | 830/1800 | 4.58 | China Non-Road Stage IV | DOC+DPF+SCR+ASC | Wheat combine, corn combine | 4 | Harvester | Inline, water-cooled, four-stroke, direct injection | Turbocharged, intercooled |
| WP4.6NG210E470C | 154/2200 | 867/1800 | 4.58 | China Non-Road Stage IV | DOC+DPF+SCR+ASC | Wheat combine, corn combine | 4 | Harvester | Inline, water-cooled, four-stroke, direct injection | Turbocharged, intercooled |
| WP4.6NG220E473C | 162/2200 | 867/1800 | 4.58 | China Non-Road Stage IV | DOC+DPF+SCR+ASC | Wheat combine, corn combine | 4 | Harvester | Inline, water-cooled, four-stroke, direct injection | Turbocharged, intercooled |
| WP4.6NG240E470C | 176/2200 | 867/1700 | 4.58 | China Non-Road Stage IV | DOC+DPF+SCR+ASC | Wheat combine, corn combine | 4 | Harvester | Inline, water-cooled, four-stroke, direct injection | Turbocharged, intercooled |
Request a Quote
Send the model designation (for example WP4.6NG190E474C), the required quantity and your destination port.
Technical details
The Weichai WP4.6N is built on a Inline configuration with 4 cylinders and 4 valves per cylinder architecture. Displacement is 4.58 L. Intake is turbocharged, intercooled. It is offered for diesel operation. For installation planning, the unit has overall dimensions of 990×730×835 and a dry weight of 450±10 kg.
Typical applications
The Weichai WP4.6N is specified for harvester duty. Confirmed applications include the following, and we can advise on suitability for your machine:
- Harvester
WP4.6N frequently asked questions
What is the power range of the Weichai WP4.6N?
The WP4.6N covers 140–176 kW (190–240 Ps). Confirm the exact sub-model code before ordering, because output varies across the model line-up.
What peak torque does the WP4.6N deliver?
Maximum torque reaches 867 N·m. Torque is developed from 1700 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 WP4.6N meet?
This unit is offered to China Non-Road Stage IV. Tell us your destination market and we will confirm the certification route before shipment.
Is the WP4.6N 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 WP4.6N 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 WP4.6N?
The WP4.6N is built on a Inline, 4 cylinders, 4.58 L of displacement layout. Send us your machine model if you need confirmation that this layout fits your installation.

