Bosch 0986435509 Fuel Injector Assembly

The Bosch 0986435509 is a common rail diesel fuel injector designed for heavy-duty commercial vehicle applications. It features solenoid actuation technology compatible with 24V electrical systems. The injector utilizes a DLLA 155 P 822 nozzle configuration for precise fuel atomization at high injection pressures up to 1800 bar. This unit serves as a direct replacement for Dongfeng Cummins engine platforms installed in Dongfeng Tianlong, Tianjin, and Dali Shen series trucks. The assembly includes the injector body, control valve, nozzle, and solenoid actuator calibrated to OEM specifications for emission compliance and fuel efficiency. Cross-reference interchangeability includes Bosch part numbers 0445120004, 0445120003, and 0986435524. The injector is engineered for durability under high-cycle thermal and mechanical loads typical of long-haul and construction logistics operations. Installation requires high-pressure fuel line torque adherence and ECU calibration verification where applicable.