4616864 Original Excavator Fuel Filter for Hitachi ZX350LCK-5G

The original fuel filter part number 4616864 is a key fuel filter component on large excavators such as Hitachi ZX350LCK-5G. It is mainly suitable for ZX series models such as ZX330, ZX350, ZX360, ZX450, etc. It is usually installed in the low-pressure oil circuit of the engine 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 an internal filter element made of folded glass fiber or high-efficiency filter paper. It has excellent oil and pressure resistance (working pressure is usually 0.3-0.8 MPa) and high filtration accuracy (can filter particles of 5-10 microns or more). Its structure includes a sealing ring, a central tube, and an anti backflow valve, which can effectively separate moisture and prevent fuel backflow. Under high temperature and pressure conditions, the ZX350LCK-5G Cummins or Isuzu engine can maintain stable filtering performance for a long time, ensuring clean fuel and avoiding problems such as nozzle blockage and engine power reduction.

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