M11-C300B Industrial Application Engine




| Engine Model | M11-C300B |
| Maxi. Rating | 300 HP @ 2100 RPM |
| Compression Ratio | 16.1 : 1 |
| Type | 4 Cycle; 6 Cylinder |
| Fuel System | PT-STC |
| Aspiration | Turbocharged & Aftercooled |
| Emission Standard | Euro II |
| Displacement | 10.8 L |
| Bore * Stroke | 125 mm × 147 mm |
| Packing Size (L * W * H) | 3200 mm * 980 mm * 1760 mm |
Overview of M11-C300B Engine
The Cummins M11-C300B is the highest-rated industrial diesel engine in the M11 series, developed by Chongqing Cummins (CCEC). With a 10.8L displacement and 300HP-class output, it is engineered for extreme-duty applications requiring maximum torque, reliability, and continuous high-load operation.
Compared with the M11-C290, the C300B delivers similar peak torque but with optimized performance tuning and improved system integration for industrial applications.
Key Specifications of M11-C300B
| Parameter | Value |
|---|---|
| Engine Model | M11-C300B |
| Rated Power | 290–300 HP (216 kW) @ 2100 RPM |
| Max Torque | 1329 Nm @ 1300 RPM |
| Displacement | 10.8 L |
| Cylinders | 6-cylinder inline |
| Aspiration | Turbocharged & Water-Air Intercooled |
| Fuel System | PT-STC |
| Compression Ratio | 16.1:1 |
| Dry Weight | ~940 kg |
Performance Advantages
1. Maximum Power in M11 Platform
The C300B represents the top-tier output in the M11 industrial engine range, designed for extreme applications.
2. Exceptional Low-Speed Torque
Up to 1329 Nm torque at 1300 RPM ensures superior performance under heavy load.
3. Heavy-Duty Structural Design
Integrated cylinder block and reduced component count improve durability and reduce failure rate.
4. Optimized Fuel Economy
PT-STC fuel system combined with optimized control strategies improves fuel efficiency under real working conditions.
Applications
- Mining equipment (drilling rigs, crushers)
- Heavy construction machinery
- Water pump sets
- Industrial generator sets
- Oil & gas equipment
Comparison – C270 vs C290 vs C300B
| Model | Power | Torque | Speed | Positioning |
|---|---|---|---|---|
| M11-C270 | 270HP | 1248–1288 Nm | 2100 RPM | High-load |
| M11-C290 | 290HP | 1329 Nm | 2100 RPM | Maximum torque |
| M11-C300B | 290–300HP | 1329 Nm | 2100 RPM | Top-tier optimized |
Why Choose Our M11-C300B Engine
- Genuine Cummins / CCEC engine supply
- Competitive wholesale pricing
- Fast delivery (15–30 days)
- Full spare parts availability
- Technical support & documentation
- Export experience (Africa / Middle East / Southeast Asia)
FAQ
Q1: What is the power of M11-C300B?
A: Approximately 290–300HP at 2100 RPM.
Q2: What is the torque?
A: Up to 1329 Nm at 1300 RPM.
Q3: Is M11-C300B suitable for mining?
A: Yes, it is specifically designed for high-load and extreme-duty environments.
Q4: What is the difference between C290 and C300B?
A: Both share similar torque levels, but C300B is optimized for industrial system integration and long-duration operation.

