Bosch 0445110470 Fuel Injector Assembly

The Bosch 0445110470 is a second-generation common rail injector (CRI2-20) designed for high-pressure direct injection diesel systems. It features a solenoid-actuated valve control group optimized for multiple injection events per cycle, enabling precise fuel quantity metering and rate shaping for reduced combustion noise and lower particulate emissions. This injector assembly includes the nozzle and holder body, solenoid valve, control valve, and internal calibration shims. It operates at system pressures up to 200 MPa (2000 bar). The nozzle geometry is calibrated for the specific combustion bowl geometry of the EA189 engine family. The injector utilizes a low-impedance solenoid coil requiring an ECU driver capable of peak-and-hold current profiles. OEM cross-references include VW Group part numbers 04L130277C, 04L130277AE, and 04L130277K. The Bosch exchange/remanufactured part number is 0986435257 (0 986 435 257). The successor remanufactured assembly carries part number 0445110471. Installation requires new high-pressure fuel line connections and copper sealing washers; torque specifications must be strictly observed per OEM service documentation.