12M25 Series · 30.4 L · China Non-Road Stage III
Excavator Engine 12M25
Models: 12M25G1065E305
For 165 t excavators
735–783 kW / 1000–1065 Ps
Power range (kW / Ps)
4650 N·m / 1400 rpm
Max torque speed (N·m / rpm)
At a glance
As an original Weichai diesel engine supplier, we supply the 12M25 built as a V-type, four-stroke, electronically controlled high-pressure common rail unit, with 30.4 L displacement. Rated output spans 735–783 kW (1000–1065 Ps). Peak torque reaches 4650 N·m. It is supplied to meet China Non-Road Stage III emission requirements. Typical duty is excavator service.
Product Overview
12 cylinders, V-type, four-stroke, electronically controlled high-pressure common rail, turbocharged and intercooled; displacement 30.4 L, rated power up to 783 kW at a rated speed of 1800 r/min, maximum torque / speed (4652 N·m) / 1300 (r/min).
Product Advantages
- Strong power: maximum power up to 783 kW and maximum torque 4652 N·m.
- Good fuel economy: fuel consumption is 10% below competing products, with superior NVH and noise 1.5~2 dBA below competitors.
- Capable of operation at 5000 m altitude, with an allowable ambient temperature of -50~50°C.
Specifications
| Power range (kW / Ps) | 735-783/1000-1065 |
| Max torque speed (N·m / r/min) | 4650/1400 |
| Emission standard | China Non-Road Stage III |
| Fuel | Diesel |
| Engine type | V-type, four-stroke, electronically controlled high-pressure common rail |
| Number of cylinders | 12 |
| Valves | 4 |
| Displacement (L) | 30.4 |
| Aspiration | Turbocharged, intercooled |
| Vehicle application | 165 t mining excavator |
| Engine dimensions (L×W×H) (mm) | 1855×1310×1740 |
| Weight (G.W.) (kg) | 3155 |
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 | Speed | Use | Type | Engine net weight (kg) | Idle speed | Aspiration |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12M25G1065E305 | 783/1800 | 4652/1300 | 30.4 | China Non-Road Stage III | electronically controlled high-pressure common rail | 165 t mining excavator | 48 | 1800 | mining excavation | V-type | 3155 | 700 | Turbocharged, intercooled |
Request a Quote
Send the model designation (for example 12M25G1065E305), the required quantity and your destination port.
Technical details
The Weichai 12M25 is built on a V-type, four-stroke, electronically controlled high-pressure common rail configuration with 12 cylinders and 4 valves per cylinder architecture. Displacement is 30.4 L. Intake is turbocharged, intercooled. It is offered for diesel operation. For installation planning, the unit has overall dimensions of 1855×1310×1740 and a dry weight of 3155 kg.
Typical applications
The Weichai 12M25 is specified for excavator duty. Confirmed applications include the following, and we can advise on suitability for your machine:
- Mining excavation
12M25 frequently asked questions
What is the power range of the Weichai 12M25?
The 12M25 covers 735–783 kW (1000–1065 Ps). Confirm the exact sub-model code before ordering, because output varies across the model line-up.
What peak torque does the 12M25 deliver?
Maximum torque reaches 4650 N·m. Torque is developed from 1400 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 12M25 meet?
This unit is offered to China Non-Road Stage III. Tell us your destination market and we will confirm the certification route before shipment.
Is the 12M25 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 12M25 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 12M25?
The 12M25 is built on a V-type, four-stroke, electronically controlled high-pressure common rail, 12 cylinders, 30.4 L of displacement layout. Send us your machine model if you need confirmation that this layout fits your installation.