
WP7H Series · 6.8 L · China Non-Road Stage IV
Road Roller Engine WP7H
Models: WP7HG180E440 · WP7HG200E440 · WP7HG200E441 · WP7HG220E440
For 20-26 t road rollers
132–162 kW / 180–220 Ps
Power range (kW / Ps)
850-970 N·m / 1500–1700 rpm
Max torque speed (N·m / rpm)



At a glance
The WP7H comes from an original Weichai diesel engine supplier and is built as an Inline unit, with 6.8 L displacement. Rated output spans 132–162 kW (180–220 Ps). It is supplied to meet China Non-Road Stage IV emission requirements. Typical duty is road roller service.
Product Overview
The WP7H engine has 6.8 L displacement with output covering 147-162 kW on an EGR route, meets China Non-Road Stage IV emission requirements and suits 22-26 t road rollers.
Product Advantages
- Strengthened block, with the gear train and key components validated to a higher standard.
- After-treatment engine installation with a small footprint, so it takes up little space and runs reliably.
- No urea dosing needed in normal market use, which keeps the cost of use low.
- The EGR system is similar to that of the China Stage VI engines and has more than 50,000 h of field operation.
Specifications
| Power range (kW / Ps) | 132-162/180-220 |
| Max torque speed (N·m / r/min) | 850-970/1500-1700 |
| Emission standard | China Non-Road Stage IV |
| Fuel | Diesel |
| Engine type | Inline |
| Number of cylinders | 6 |
| Valves | 4 |
| Displacement (L) | 6.8 |
| Aspiration | Turbocharged, intercooled |
| Vehicle application | 20 t road roller |
| Engine dimensions (L×W×H) (mm) | 1350×940×1490 |
| Weight (G.W.) (kg) | 700 |
Note: product parameters and images are for reference only and are subject to change without notice.
Model Line-up
| Model | Rated power / speed | Max torque / speed | Displacement | Emission standard | Technology route | Application | Valves | Aspiration |
|---|---|---|---|---|---|---|---|---|
| WP7HG180E440 | 132/2200 | 850/1500-1700 | 6.8 | China Non-Road Stage IV | EGR | 20 t road roller | 4 | Turbocharged, intercooled |
| WP7HG200E440 | 147/1800 | 950/1200-1400 | 6.8 | China Non-Road Stage IV | EGR | 22-26 t road roller | 4 | Turbocharged, intercooled |
| WP7HG200E441 | 147/2000 | 950-1400-1600 | 6.8 | China Non-Road Stage IV | EGR | 22-26 t road roller | 4 | Turbocharged, intercooled |
| Model | Rated power / speed | Max torque / speed | Displacement | Emission standard | Technology route | Application | Valves | Aspiration |
|---|---|---|---|---|---|---|---|---|
| WP7HG220E440 | 162/2200 | 970/1500-1700 | 6.8 | China Non-Road Stage IV | EGR | 26 t road roller | 4 | Turbocharged, intercooled |
Request a Quote
Send the model designation (for example WP7HG180E440), the required quantity and your destination port.
Technical details
The Weichai WP7H is built on a Inline configuration with 6 cylinders and 4 valves per cylinder architecture. Displacement is 6.8 L. Intake is turbocharged, intercooled. It is offered for diesel operation. For installation planning, the unit has overall dimensions of 1350×940×1490 and a dry weight of 700 kg.
Typical applications
The Weichai WP7H is specified for road roller duty. Confirmed applications include the following, and we can advise on suitability for your machine:
- 26 t road roller
WP7H frequently asked questions
What is the power range of the Weichai WP7H?
The WP7H covers 132–162 kW (180–220 Ps). Confirm the exact sub-model code before ordering, because output varies across the model line-up.
Which emission standard does the WP7H 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 WP7H 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 WP7H 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 WP7H?
The WP7H is built on a Inline, 6 cylinders, 6.8 L of displacement layout. Send us your machine model if you need confirmation that this layout fits your installation.

