Cummins 3411755 Fuel Injector Assembly

This common rail fuel injector is engineered for Cummins ISZ and QSZ13 series diesel engines utilizing the XPI fuel system. It delivers precise fuel atomization and metering control required for modern emissions compliance and optimal combustion efficiency. The injector assembly features a solenoid-actuated control valve and multi-hole nozzle design calibrated for high-pressure common rail operation. Constructed with hardened alloy steel components to withstand extreme injection pressures and thermal cycling. The nozzle geometry is optimized for the specific combustion bowl profiles of the ISZ13 and QSZ13 platforms. This unit serves as a direct replacement for multiple Cummins service part numbers across heavy-duty truck and excavator applications. Each injector undergoes flow balancing and leakage testing to meet OEM performance standards for fuel delivery rate and spray pattern consistency.