4425744 CYL.;BUCKET (R) Hitachi parts of EX5500, EX5500-5

1. Quick Details of  seal 4425744:

2. 4425744 parts on group :

3. 4425744 picture:

4. Service part number :

 
5. FAQ

Q: I’m looking for complete sealing repair parts for large excavator boom cylinder refurbishment, could you tell me the exact part number for my inquiry sheet?
A: The exact matching part number is 4425744, this full boom cylinder seal kit is manufactured for large excavator boom cylinder field repair and complete hydraulic cylinder overhaul assignments.

Q: Which hydraulic cylinder assembly does part number 4425744 fit on large excavator equipment?
A: 4425744 matches the boom hydraulic cylinder, it drives lifting and lowering of the main boom assembly, supporting heavy rock excavation, high‑position material stacking and heavy‑load handling under quarry working scenarios.

Q: What about the dimensional stability and surface workmanship of these sealing spare parts?
A: Every seal maintains consistent raw‑material color, all sharp corners receive precise chamfering, dynamic contact surfaces go through fine finishing treatment to lower abrasion under repeated boom lifting cycles.

Q: Can this product prevent hydraulic oil leakage effectively?
A: The precise size design effectively reduces internal leakage and external oil seepage.

Q: What construction scenarios often require this arm cylinder seal kit for regular maintenance?
A: It is widely used for maintaining mini excavators working on villa foundation projects, landscape engineering, pipeline trenching and rural road reconstruction.

6. Exhibition and Wearhous

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