4616544 Excavator Fuel Filter for Hitachi ZX130-5G

The original fuel filter part number 4616544 is a key fuel filter component on medium-sized excavators such as Hitachi ZX130-5G. It is mainly suitable for ZX60, ZX70, ZX120, ZX200, ZX130 and other ZX series models. It is usually installed as a diesel coarse filter in the low-pressure oil circuit of the fuel system, responsible for filtering impurities, moisture and gum in diesel, and protecting precision components such as high-pressure fuel pumps and injectors. This universal number is its only original factory identification. When ordering, the complete model and serial number of the equipment must be provided to ensure that the interface specifications, installation dimensions, and filtration accuracy of the filter are fully matched with the engine.

This product belongs to the rotary diesel filter, with a high-strength metal shell and a folded filter element supported by a punched mesh skeleton inside. It has excellent high temperature resistance (working temperature can reach 200 ℃), pressure resistance (maximum working pressure difference of 100MPa), and high filtration accuracy (can filter particles over 10 microns). Its structure includes a sealing ring, a bypass valve, and an anti backflow device. When the filter element is clogged, the bypass valve automatically opens to ensure continuous fuel supply. In the original imported environmentally friendly engines of ZX130-5G (such as Isuzu or Yangma engines), stable filtering performance can be maintained for a long time under high temperature and high pressure conditions, ensuring fuel cleanliness and avoiding problems such as clogged fuel injectors and decreased engine power.

It is recommended to replace it every 500 working hours or every 6 months, and in working conditions with high dust and poor fuel quality, it should be shortened to 250-300 working hours. Replacement steps: 1 Release fuel system pressure (can disconnect the fuel pump relay and start the engine until it stalls); 2. Use specialized tools to remove the old filter; 3. Clean the installation seat and apply a small amount of engine oil to the sealing ring of the new filter; 4. Manually tighten the new filter until the sealing ring contacts the mounting seat, and then rotate it 3/4 to 1 turn; 5. After emptying the air in the pipeline, start the engine and check for leaks. Daily inspection: Check the filter housing for oil leakage and deformation every 50 hours of work, and observe the water in fuel warning light