1131002770 Diesel Engine Parts 6BG1 Oil Pump for EX200-3 

The Isuzu original diesel fuel pump (universal part number: 1131002770) is a core component of the high-pressure fuel supply system designed specifically for excavators equipped with Isuzu engines. This original spare part is mainly suitable for various brands of excavators equipped with Isuzu 6BG1, 4BG1T, 4HK1X, and 4JJ1 series engines. The specific applicable models include but are not limited to: ZAXIS series such as Hitachi ZX200-3, ZX250-3, ZX330-3, Komatsu PC200-8, PC220-8 (equipped with Isuzu engine models), and other brand models that may use the same series of engines.
 

The fuel pump is the "heart" of the engine fuel system, with its core function being to extract fuel from the tank, filter it, and pressurize it to a high pressure state (usually up to hundreds or even thousands of bars). According to the instructions of the engine ECU, the fuel is accurately, timed, and quantitatively delivered to each cylinder injector through the high-pressure fuel pipe, achieving fuel atomization and efficient combustion. As an original component, it usually adopts high-strength aluminum alloy shell, and the internal core such as plunger and oil outlet valve are precision machined from special alloy steel, which has extremely high wear resistance and corrosion resistance.
 

To ensure the long-term reliable operation of the fuel pump, strict regular maintenance and preventive maintenance are required. High cleanliness and low sulfur diesel that meets the standards must be used, and the fuel filter should be replaced regularly (recommended every 500 hours of operation) to prevent impurities and moisture from entering the pump and causing wear or jamming of precision components. It is recommended to check the sealing of all connection parts of the fuel pump every 1000 hours of operation for any signs of fuel leakage.