Bosch 0986435550 Common Rail Fuel Injector Assembly

The Bosch 0986435550 is a Common Rail diesel fuel injector designed for high-pressure direct injection systems. It features a solenoid-actuated nozzle assembly calibrated to Bosch code D0779A, ensuring precise fuel metering and atomization for optimal combustion efficiency and emissions compliance. Constructed with high-speed steel internal components and a robust alloy steel body, the injector withstands peak rail pressures exceeding 1800 bar. The nozzle geometry (type CRIN) is engineered for the specific spray pattern required by the Mitsubishi 4M50 cylinder head and piston bowl configuration. This unit is supplied without a sealing ring (copper washer), which must be sourced separately during installation. This part serves as a direct interchange for Mitsubishi OEM numbers ME194299 and ME120073, as well as Zexel/Denso reference 107755-0230. It is the standard service replacement for the production injector stamped 0445120073. Applications cover Mitsubishi Fuso Canter 3.0L light-duty trucks and select Volvo Penta industrial power units equipped with the 4M50 engine platform.