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QSL
Cummins
Unmatched Power, Intelligence, and Reliability for Demanding Operations
The Cummins QSL series represents the pinnacle of heavy-duty diesel engineering for the most challenging applications. Designed and manufactured by the Cummins global network, including facilities like Guangxi Cummins and Dongfeng Cummins, this 8.9-liter, inline 6-cylinder engine is built on a legacy of reliability and continuous innovation. It masterfully balances superior power density with excellent fuel economy and low emissions, offering a future-proof power solution for marine, construction, and industrial sectors.
The QSL engine is available in various configurations to meet specific power and torque requirements. Below are the core specifications that define its performance envelope:
The versatility of the QSL engine makes it the prime mover of choice across multiple high-performance industries:
Marine Propulsion: A trusted power source for both recreational and commercial vessels, including yachts, sport cruisers, fishing boats, and trawlers. Its clean, quiet operation and excellent fuel economy are ideal for long-range cruising.
Construction & Heavy Equipment: The engine of choice for demanding machinery. It is famously engineered for and widely used in wheel loaders and excavators, providing the robust, responsive power needed for heavy digging and loading cycles.
Power Generation: Serves as a highly reliable prime mover for diesel generator sets, delivering both prime and standby electrical power for industrial facilities, data centers, and critical infrastructure.
Industrial & Agricultural: Powers a wide range of heavy-duty industrial equipment, oil and gas operations, and large agricultural machinery.
High-Pressure Common Rail (HPCR) Fuel System: The electronically controlled HPCR system delivers precise fuel injection at constant high pressure. This results in superior combustion efficiency, leading to significant fuel savings, lower emissions, reduced noise and vibration, and virtually no startup smoke.
Advanced Electronic Control & Intelligence: The full-authority electronic control module (ECM) is the brain of the engine, enabling real-time diagnostics, optimized performance mapping, and remote monitoring capabilities. Optional systems like C-LINK allow for fleet management, operational data analysis, and proactive maintenance scheduling directly from a smartphone.
Robust Design for Extreme Durability: Engineered for the harshest environments, the QSL features a heavy-duty engine block with reinforced internal components. Its design philosophy focuses on reliability and leak prevention, utilizing features like metric O-ring seals and edge-molded gaskets. This translates to longer engine life and a lower total cost of ownership.
Optimized for Efficiency and Serviceability: The engine boasts an integrated, modular design that simplifies maintenance. With features like a 500-hour standard service interval for oil and filters (extendable to 1000 hours for air filters), it drastically reduces downtime and operating costs compared to previous generations.
Unmatched Power, Intelligence, and Reliability for Demanding Operations
The Cummins QSL series represents the pinnacle of heavy-duty diesel engineering for the most challenging applications. Designed and manufactured by the Cummins global network, including facilities like Guangxi Cummins and Dongfeng Cummins, this 8.9-liter, inline 6-cylinder engine is built on a legacy of reliability and continuous innovation. It masterfully balances superior power density with excellent fuel economy and low emissions, offering a future-proof power solution for marine, construction, and industrial sectors.
The QSL engine is available in various configurations to meet specific power and torque requirements. Below are the core specifications that define its performance envelope:
The versatility of the QSL engine makes it the prime mover of choice across multiple high-performance industries:
Marine Propulsion: A trusted power source for both recreational and commercial vessels, including yachts, sport cruisers, fishing boats, and trawlers. Its clean, quiet operation and excellent fuel economy are ideal for long-range cruising.
Construction & Heavy Equipment: The engine of choice for demanding machinery. It is famously engineered for and widely used in wheel loaders and excavators, providing the robust, responsive power needed for heavy digging and loading cycles.
Power Generation: Serves as a highly reliable prime mover for diesel generator sets, delivering both prime and standby electrical power for industrial facilities, data centers, and critical infrastructure.
Industrial & Agricultural: Powers a wide range of heavy-duty industrial equipment, oil and gas operations, and large agricultural machinery.
High-Pressure Common Rail (HPCR) Fuel System: The electronically controlled HPCR system delivers precise fuel injection at constant high pressure. This results in superior combustion efficiency, leading to significant fuel savings, lower emissions, reduced noise and vibration, and virtually no startup smoke.
Advanced Electronic Control & Intelligence: The full-authority electronic control module (ECM) is the brain of the engine, enabling real-time diagnostics, optimized performance mapping, and remote monitoring capabilities. Optional systems like C-LINK allow for fleet management, operational data analysis, and proactive maintenance scheduling directly from a smartphone.
Robust Design for Extreme Durability: Engineered for the harshest environments, the QSL features a heavy-duty engine block with reinforced internal components. Its design philosophy focuses on reliability and leak prevention, utilizing features like metric O-ring seals and edge-molded gaskets. This translates to longer engine life and a lower total cost of ownership.
Optimized for Efficiency and Serviceability: The engine boasts an integrated, modular design that simplifies maintenance. With features like a 500-hour standard service interval for oil and filters (extendable to 1000 hours for air filters), it drastically reduces downtime and operating costs compared to previous generations.