M11-C250B Industrial Application Engine
| Engine Model | M11-C250B |
| Maxi. Rating | 250 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-C250B Engine
The Cummins M11-C250B is a reliable 250HP industrial diesel engine developed by Chongqing Cummins (CCEC). Built on the proven M11 platform, it features a 10.8L displacement and is designed for continuous heavy-duty operation in construction and industrial applications.
Compared with the M11-C250A, the C250B provides more stable torque output and optimized fuel system control, making it a preferred choice for long-hour operation environments.
Key Specifications of M11-C250B
| Parameter | Value |
|---|---|
| Engine Model | M11-C250B |
| Rated Power | 250 HP (186 kW) @ 2100 RPM |
| Max Torque | 1146 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. Stable 250HP Output
Delivers consistent 250HP power at 2100 RPM, suitable for continuous industrial operation.
2. Strong Mid-Range Torque
Provides up to 1146 Nm torque at 1300 RPM, ensuring reliable performance under load.
3. Proven M11 Platform Reliability
The M11 series is known for durability, optimized combustion, and long service life.
4. Efficient Fuel System
PT-STC fuel system improves injection precision and reduces fuel consumption.
Applications
- Construction machinery (excavators, loaders, bulldozers)
- Water pump sets
- Generator sets
- Mining equipment
- Oil & gas machinery
Comparison – C250A vs C250B vs C225E
| Model | Power | Torque | Speed | Positioning |
|---|---|---|---|---|
| M11-C250A | 250HP | ~1019 Nm | 2100 RPM | Balanced |
| M11-C250B | 250HP | 1146 Nm | 2100 RPM | Stable & optimized |
| M11-C225E | 275HP | 1288 Nm | 1800/2100 RPM | High-performance |
Why Choose Our M11-C250B Engine
- Genuine Cummins / CCEC supply
- Competitive wholesale pricing
- Fast delivery (15–30 days)
- Full spare parts availability
- Technical documentation support
- Export experience (Africa / Middle East / Southeast Asia)
FAQ
Q1: What is the difference between M11-C250A and C250B?
A: The C250B offers higher torque (1146 Nm vs ~1019 Nm) and improved fuel system performance, making it more suitable for continuous heavy-duty use.
Q2: Is M11-C250B suitable for generator sets?
A: Yes, it is widely used in industrial generator and pump applications.
Q3: What is the fuel consumption?
A: Approximately 64 L/h under rated load (depending on working conditions).
Q4: What industries use M11 engines?
A: Construction, mining, agriculture, oil & gas, and power generation.
