Cummins QSM11-C335 Industrial Diesel Engine

The Cummins QSM11-C335 is a high-output industrial diesel engine designed for demanding non-road equipment. With strong low-speed torque and stable power delivery, it supports heavy-duty applications that require consistent performance under varying loads. At the same time, its balanced power curve allows equipment to operate efficiently across typical working speed ranges.

Technical Specifications

• Rated power: 335 hp (250 kW) at 2100 rpm

• Maximum power: 365 hp (272 kW) at 1800 rpm

• Maximum torque: 1674 N·m at 1400 rpm

Because the maximum torque is achieved at 1400 rpm, the QSM11-C335 delivers strong pulling force at mid-range engine speed. As a result, operators benefit from improved load response, smoother operation, and better working efficiency in demanding conditions.

Strong Mid-Range Performance

The combination of 335 hp rated power and 365 hp maximum power ensures sufficient output for high-load operations. Moreover, the high torque of 1674 N·m supports heavy equipment during climbing, lifting, or continuous-duty cycles. Therefore, the engine maintains stable performance even when working under sustained load.

Since the maximum power is delivered at 1800 rpm, the engine achieves an effective balance between power output and operational stability. This characteristic helps reduce engine strain while maintaining productivity.

Reliable Operation for Demanding Applications

The QSM11-C335 is engineered for durability and long service life in non-road environments. Its strong torque characteristics at 1400 rpm enhance working efficiency, especially in applications where consistent low-speed performance is essential.

In addition, the optimized power distribution across the operating range allows equipment manufacturers to match the engine efficiently with transmission and hydraulic systems. Consequently, machines can achieve better overall performance and improved operational stability.

Conclusion

With rated power of 335 hp and maximum torque of 1674 N·m at 1400 rpm, the Cummins QSM11-C335 industrial diesel engine provides a powerful and reliable solution for heavy-duty non-road equipment. It combines strong mid-range torque, stable output, and dependable performance to meet the demands of challenging working conditions.