WP4.6N Series · 4.58 L · China Non-Road Stage IV / No emission certification / India BS IV / Stage V
Road Roller Engine WP4.6N
Models: WP4.6NG180E470 · WP4.6NG200E473 · WP4.6NG200E471 · WP4.6NG135E440 · WP4.6NG220E470 · WP4.6NG175E444 · WP4.6NG175E301 · WP4.6NG200E303 · WP4.6NG125E301 · WP4.6NG135E501 · WP4.6NG135E670 · WP4.6NG134E671
For 10-26 t road rollers
92–162 kW / 125–220 Ps
Power range (kW / Ps)
850 N·m / 1400–1600 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 92–162 kW (125–220 Ps). Peak torque reaches 850 N·m. It is supplied to meet China Non-Road Stage IV emission requirements. Typical duty is road roller service.
Product Overview
For the domestic market the WP4.6N covers 99-162 kW, and for export markets 92-147 kW, meeting the packaging requirements of 10-30 t road rollers.
Product Advantages
- Low fuel consumption. Separated intake and exhaust design improves charging efficiency and optimises combustion for better economy and a low fuel consumption rate, with powertrain fuel consumption more than 20% better than competing products.
- Lightweight design. Modular architecture with integrated fuel filter and integrated oil-cooling module.
- Excellent NVH. A rear gear train further reduces vibration and noise, 2 dB(A) below competing products.
- Strong power. Torque raised to 850 N·m to meet the drive demand of 26 t hydraulic dual-drive rollers.
- Updated appearance. Family styling with tidier oil and electrical routing.
Specifications
| Power range (kW / Ps) | 92-162/125-220 |
| Max torque speed (N·m / r/min) | 850/1400-1600 |
| Emission standard | China Non-Road Stage IV / No emission certification / India BS IV / Stage V |
| Fuel | Diesel |
| Engine type | Inline |
| Number of cylinders | 4 |
| Valves | 4 |
| Displacement (L) | 4.58 |
| Aspiration | Turbocharged, intercooled |
| Vehicle application | 20 t road roller |
| Engine dimensions (L×W×H) (mm) | 1120×787×1402 |
| Weight (G.W.) (kg) | 450 |
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 |
|---|---|---|---|---|---|---|---|---|
| WP4.6NG180E470 | 132/2200 | 760/1500 | 4.58 | China Non-Road Stage IV | SCR | 20 t road roller | 4 | Turbocharged, intercooled |
| WP4.6NG200E473 | 147/1800 | 850/1500 | 4.58 | China Non-Road Stage IV | SCR | 22-26 t road roller | 4 | Turbocharged, intercooled |
| WP4.6NG200E471 | 147/2000 | 850/1500 | 4.58 | China Non-Road Stage IV | SCR | 22-26 t road roller | 4 | Turbocharged, intercooled |
| WP4.6NG135E440 | 99/2000 | 610/1300-1500 | 4.58 | China Non-Road Stage IV | EGR | 14 t road roller | 4 | Turbocharged, intercooled |
| Model | Rated power / speed | Max torque / speed | Displacement | Emission standard | Technology route | Application | Valves | Aspiration |
|---|---|---|---|---|---|---|---|---|
| WP4.6NG220E470 | 162/2200 | 850/1500 | 4.58 | China Non-Road Stage IV | SCR | 26 t road roller | 4 | Turbocharged, intercooled |
| Model | Rated power / speed | Max torque / speed | Displacement | Emission standard | Technology route | Application | Valves | Aspiration |
|---|---|---|---|---|---|---|---|---|
| WP4.6NG175E444 | 129/2200 | 700/1500 | 4.58 | China Non-Road Stage IV | EGR | 13 t tandem-drum road roller | 4 | Turbocharged, intercooled |
| Model | Rated power / speed | Max torque / speed | Displacement | Emission standard | Technology route | Application | Valves | Aspiration |
|---|---|---|---|---|---|---|---|---|
| WP4.6NG175E301 | 129/2200 | 680/1400-1700 | 4.58 | No emission certification | CR | 12-20 t single-drum road roller | 4 | Turbocharged, intercooled |
| WP4.6NG200E303 | 147/2000 | 850/1500 | 4.58 | No emission certification | CR | 22-26 t single-drum road roller | 4 | Turbocharged, intercooled |
| WP4.6NG125E301 | 92/2200 | 630/1400 | 4.58 | No emission certification | CR | 10-11 t tandem-drum road roller | 4 | Turbocharged, intercooled |
| WP4.6NG175E301 | 129/2200 | 680/1400-1700 | 4.58 | No emission certification | CR | 13-14 t tandem-drum road roller | 4 | Turbocharged, intercooled |
| WP4.6NG200E303 | 147/2000 | 850/1500 | 4.58 | No emission certification | CR | 26-30 t rubber-tyre road roller | 4 | Turbocharged, intercooled |
| Model | Rated power / speed | Max torque / speed | Displacement | Emission standard | Technology route | Application | Valves | Aspiration |
|---|---|---|---|---|---|---|---|---|
| WP4.6NG135E501 | 99/2250 | 610/1400 | 4.58 | India BS IV | SCR | 10-12 t single-drum road roller | 4 | Turbocharged, intercooled |
| WP4.6NG135E670 | 99/2200 | 630/1400 | 4.58 | Stage V | SCR | 12 t road roller | 4 | turbocharged |
| WP4.6NG134E671 | 98/2200 | 545/1600 | 4.58 | India BS IV | SCR | 24 t rubber-tyre road roller | 4 |
Request a Quote
Send the model designation (for example WP4.6NG180E470), 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 1120×787×1402 and a dry weight of 450 kg.
Typical applications
The Weichai WP4.6N is specified for road roller duty. Confirmed applications include the following, and we can advise on suitability for your machine:
- 10-12 t single-drum road roller
WP4.6N frequently asked questions
What is the power range of the Weichai WP4.6N?
The WP4.6N covers 92–162 kW (125–220 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 850 N·m. Torque is developed from 1400-1600 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 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.