Full Range of Cummins Engine Fuel Injectors
As the "heart component" of diesel engines, the atomization quality and injection precision of fuel injectors directly determine the overall power output, fuel economy and emission performance of the whole machine. We supply OEM-grade fuel injector assemblies and precision matching parts covering the full lineup of Cummins engines including NT855, M11, QSX15 and K-series. Superior manufacturing craftsmanship sustains peak performance of your equipment.
NT855 / NTA855 Series Fuel Injectors:
Classic Heavy-Duty, Precise & Durable
Applicable Equipment
Widely applied to generator sets, heavy construction machinery (bulldozers, loaders), marine power units and mining equipment.
Core Highlights
The NT855 is a classic heavy-duty power platform locally manufactured by CCEC in Chongqing, whose injectors adopt the mature PT fuel system design. This series of injectors boasts outstanding environmental adaptability and wear resistance, maintaining stable fuel atomization under sustained heavy-load operating conditions.
Both early mechanical injectors and later NTA855 dedicated injectors with inlet valve design enable smooth engine idling and instant power response under high loads. They effectively prevent fuel dripping and carbon deposition, serving as core spare parts to restore peak performance of these classic engines.
M11 / QSM11 Series Fuel Injectors:
Pioneer of Electronic Control, High Efficiency & Energy Saving
Applicable Equipment
Compatible with all kinds of medium and large excavators, rotary drilling rigs, heavy-duty tractors and high-end generator sets.
Core Highlights
M11/QSM11 series fuel injectors embody the mature application of Cummins electronic fuel injection technology. This injector line (including STC step timing controlled injectors) is manufactured under extremely strict precision standards, with internal connecting shafts and precision matching parts treated via special hardening processes.
Controlled by the ECM (Electronic Control Module) at microsecond-level accuracy, the injectors realize multi-stage injection strategies to greatly optimize combustion efficiency. Our supplied M11 injectors are calibrated strictly in accordance with OEM specifications to guarantee complete locking and sealing of connecting shafts and nuts. They effectively resolve common post-repair faults such as black smoke emission, speed drop and abnormal noise, and substantially improve the overall fuel economy of equipment.
QSX15 Series Fuel Injectors:
Ultra-High Pressure Common Rail, Powerful Output
Applicable Equipment
Specially designed for large mining dump trucks, super-large tonnage excavators, crawler cranes and high-power generator sets.
Core Highlights
As a representative of high-horsepower electronically controlled engines, the QSX15 fuel injector adopts a highly modular fuel system structure. This series of injectors withstands ultra-high fuel injection pressure and atomizes diesel into ultra-fine droplets, greatly expanding the contact area between fuel and air.
Its built-in precision solenoid valve delivers ultra-fast response speed. Combined with the double overhead camshaft structure, it achieves an optimal balance between power output and emission performance.
To address the industry pain points of complicated maintenance and scarce spare parts for QSX15 injectors, we supply premium assemblies that have passed rigorous dynamic response tests. They maintain outstanding power performance and stability even under extremely harsh mining and construction working conditions.
K19 Series Fuel Injectors:
Cornerstone of High-Horsepower Engines, Stable & Reliable
Applicable Equipment
Widely deployed on main and auxiliary marine engines, plateau generator sets, mining water sprinklers and heavy-duty dump trucks.
Core Highlights
The K19 engine platform is the foundational high-horsepower product line of Chongqing Cummins. Its fuel injectors (including STC versions and traditional PT pump-driven models) are engineered for heavy loads and long-hour continuous operation.
Fabricated from special alloy materials resistant to high temperature and corrosion, these injectors perfectly match the K19 engine’s large air intake volume and high compression ratio. Whether operating in hot, humid marine environments or thin-air plateau mining zones, K19 injectors deliver consistent, stable high-pressure fuel supply to ensure complete combustion, drastically cutting long-term maintenance expenses.
K38 / K50 Series Fuel Injectors:
Flagship Power, Ultimate Atomization
Applicable Equipment
Compatible with ocean-going vessels, large platform supply ships, wind power installation platforms and ultra-large mining haul trucks.
Core Highlights
As flagship high-horsepower models in the Cummins engine lineup, K38/K50 series fuel injectors stand for the pinnacle of mechanically driven injection technology. This series is generally equipped with a double camshaft structure to precisely control valve timing and injection timing.
The injectors feature a compact structure and ultra-high pressure resistance. Matched with wet cylinder liners and high-efficiency supercharging systems, they unleash impressive torque reserve.
Our supplied K38/K50 injectors are assembled in strict accordance with OEM craftsmanship standards. They maintain supreme fuel atomization and extremely low failure rates under continuous thousands-of-horsepower output, acting as the power guarantee for non-stop operation of super-large heavy-duty equipmen