Bosch 0445120112 Common Rail Fuel Injector Assembly

The Bosch 0445120112 is a solenoid-actuated common rail diesel fuel injector designed for high-pressure direct injection systems. It features a multi-hole nozzle assembly calibrated for precise fuel metering and atomization in heavy-duty diesel engines. The injector utilizes the DLLA118P1677 nozzle (part number 0433172027) and integrates the F00RJ01941 control valve. It is engineered to withstand peak rail pressures typical of third-generation common rail systems. The assembly undergoes flow calibration and leakage testing to ensure compliance with OEM emission and performance standards. Primary applications include Cummins ISC 8.3L, QSL9, and ISLe engine platforms installed in construction machinery such as Komatsu PC200-8 excavators and Case equipment, as well as heavy-duty truck configurations.