
WP3.2 Series · 3.17 L · China Non-Road Stage IV / MAR-1 / Europe Stage IIIA
Excavator Engine WP3.2
Models: WP3.2G50E430 · WP3.2G50E436 · WP3.2G65E441 · WP3.2G75E441 · WP3.2G85E441 · WP3.2G93E441 · WP3.2G50E311 · WP3.2G50E4314
For 6-10 t excavators
36.4–68 kW / 50–93 Ps
Power range (kW / Ps)
400 N·m / 1400–1600 rpm
Max torque speed (N·m / rpm)



At a glance
As an original Weichai diesel engine supplier, we supply the WP3.2 built as an Inline unit, with 3.17 L displacement. Rated output spans 36.4–68 kW (50–93 Ps). Peak torque reaches 400 N·m. It is supplied to meet China Non-Road Stage IV emission requirements. Typical duty is excavator service.
Product Overview
Displacement 3.17 L on an electronically controlled high-pressure common-rail route, with strong integration and good economy, able to work at 5000 m altitude and suited to 6-10 t excavators.
Product Advantages
- Adaptability. Works from -25°C to 50°C with a standard integrated coolant preheater, tolerates a wide range of fuels and runs normally up to 5000 m altitude.
- Performance. The high-pressure common-rail fuel system gives vehicle efficiency 5% better than competing products.
- Economy. Dedicated control logic and strategies developed for the specific duty cycle, with multiple pilot injections and optimised combustion, give vehicle fuel consumption 5%-10% better than competing products.
- Reliability. A mature and dependable common-rail system, high-strength block and wear-resistant piston rings secure high reliability.
- Comfort. Optimised combustion and intake and exhaust systems comprehensively improve NVH with good sound quality.
Specifications
| Power range (kW / Ps) | 36.4-68/50-93 |
| Max torque speed (N·m / r/min) | 400/1400-1600 |
| Emission standard | China Non-Road Stage IV / MAR-1 / Europe Stage IIIA |
| Fuel | Diesel |
| Engine type | Inline |
| Number of cylinders | 4 |
| Valves | 2 |
| Displacement (L) | 3.17 |
| Aspiration | naturally aspirated |
| Vehicle application | 6 t excavator |
| Engine dimensions (L×W×H) (mm) | 761×552×870 |
| Weight (G.W.) (kg) | 290 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| WP3.2G50E430 | 36.8/2200 | 210/1400-1600 | 3.17L | China non-road Stage IV, MAR-1 | CR | 6 t excavator | 2 | excavator | Inline 4-cylinder, four-stroke | naturally aspirated |
| WP3.2G50E436 | 36.8/2200 | 240/1200-1400 | 3.17L | China non-road Stage IV, MAR-1 | CR | 7-8 t excavator | 2 | excavator | Inline 4-cylinder, four-stroke | turbocharged |
| WP3.2G65E441 | 48/2200 | 280/1400-1600 | 3.17L | China non-road Stage IV, MAR-1 | EGR+DOC+DPF | 7-8 t excavator | 2 | excavator | Inline 4-cylinder, four-stroke | turbocharged |
| WP3.2G75E441 | 55.8/2200 | 320/1400-1600 | 3.17L | China non-road Stage IV, MAR-1 | EGR+DOC+DPF | 7-8 t excavator | 2 | excavator | Inline 4-cylinder, four-stroke | turbocharged |
| WP3.2G85E441 | 62.5/2200 | 355/1400-1600 | 3.17L | China non-road Stage IV, MAR-1 | EGR+DOC+DPF | 8-9 t excavator | 2 | excavator | Inline 4-cylinder, four-stroke | Turbocharged, intercooled |
| WP3.2G93E441 | 68/2200 | 400/1400-1600 | 3.17L | China non-road Stage IV, MAR-1 | EGR+DOC+DPF | 8-10 t excavator | 2 | excavator | Inline 4-cylinder, four-stroke | Turbocharged, intercooled |
| WP3.2G50E311 | 36.4/2200 | 200/1400-1700 | 3.17L | Europe Stage IIIA, MAR-1 | CR | 6 t excavator | 2 | excavator | Inline 4-cylinder, four-stroke | naturally aspirated |
| WP3.2G50E4314 | 36.4/2200 | 240/1200-1400 | 3.17L | Europe Stage IIIA, MAR-1 | CR | 7-8 t excavator | 2 | excavator | Inline 4-cylinder, four-stroke | turbocharged |
Request a Quote
Send the model designation (for example WP3.2G50E430), the required quantity and your destination port.
Technical details
The Weichai WP3.2 is built on a Inline configuration with 4 cylinders and 2 valves per cylinder architecture. Displacement is 3.17 L. Intake is naturally aspirated. It is offered for diesel operation. For installation planning, the unit has overall dimensions of 761×552×870 and a dry weight of 290 kg.
Typical applications
The Weichai WP3.2 is specified for excavator duty. Confirmed applications include the following, and we can advise on suitability for your machine:
- Excavator
WP3.2 frequently asked questions
What is the power range of the Weichai WP3.2?
The WP3.2 covers 36.4–68 kW (50–93 Ps). Confirm the exact sub-model code before ordering, because output varies across the model line-up.
What peak torque does the WP3.2 deliver?
Maximum torque reaches 400 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 WP3.2 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 WP3.2 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 WP3.2 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 WP3.2?
The WP3.2 is built on a Inline, 4 cylinders, 3.17 L of displacement layout. Send us your machine model if you need confirmation that this layout fits your installation.

