Bosch 0445120384 Fuel Injector Assembly

The Bosch 0445120384 is a common rail solenoid injector (CRIN3-18 type) designed for high-pressure direct injection diesel systems. It utilizes a 7-hole nozzle (DLLA143P2468) with a 143-degree spray angle and a solenoid control valve (F00RJ01714) for precise injection timing and quantity control. The injector operates at system pressures up to 1800 bar. This assembly serves as a direct replacement for Cummins OEM part numbers 4988835 and 5310954 (reman), and supersedes Bosch part number 0445120267. It is calibrated to original equipment specifications for flow rate and opening pressure. Primary applications include Cummins ISB 6.7, QSB 6.7, ISB 4.5, and QSB 4.5 engines found in heavy-duty trucks, construction excavators, loaders, and industrial power units. The injector body is manufactured from high-strength alloy steel with corrosion-resistant surface treatment.