WEIFU 0280155733 Injector Nozzle Assembly

The WEIFU 0280155733 is a common rail diesel injector nozzle valve set designed for Bosch-type fuel injection systems. It serves as a direct replacement for the Bosch 0 280 155 733 nozzle used in Dongfeng Cummins ISB, ISC, ISDe, and ISL (L-series) engines. These engines are widely deployed in domestic Chinese construction machinery including XCMG, SANY, and JINGONG excavators and loaders. Manufactured by WEIFU High-Technology Group, a primary OE supplier for Chinese commercial vehicle and engine manufacturers, this component features multi-hole nozzle geometry calibrated for high-pressure common rail operation up to 1800 bar. The nozzle body is constructed from high-speed tool steel, heat-treated for wear resistance and dimensional stability under cyclic thermal loading. Flow characteristics and spray atomization are validated to OEM specifications to ensure combustion efficiency, emissions compliance, and cold-start reliability.