707-98-58200 7079858200 Boom Hydraulic Cylinder Seal Repair Kit for Excavator Boom Cylinder Overhaul & Heavy‑Duty Mine Excavation Hydraulic Service

1. Quick Details of  seal 707-98-58200:

2.  707-98-58200 picture:

3. Service part number :

 
4. FAQ

Q: I would like to source full hydraulic seal repair parts for heavy‑duty excavator boom cylinder, could you confirm which part number I should list on my order sheet?
A: The exact matching part number is 707‑98‑58200, this complete boom cylinder seal kit is specially made for heavy‑duty excavator boom cylinder field maintenance and full hydraulic cylinder rebuilding work.

Q: Which hydraulic cylinder unit does part number 707‑98‑58200 fit on excavator equipment?
A: 707‑98‑58200 matches the boom hydraulic cylinder, which controls the raising and lowering movements of main boom during heavy‑rock excavation and bulk material hoisting on mine construction sites.

Q: What raw materials are adopted for each sealing component inside this repair kit?
A: It applies NBR for oil‑resistant o‑rings, PU for high‑pressure resistant rod seals, PTFE anti‑extrusion backup rings and fabric‑reinforced wear rings to sustain heavy side load and frequent reciprocating friction.

Q: What sealing parts are included inside this full repair kit?
A: It contains piston seals, rod seals, buffer rings, PTFE backup rings, dust wiper seals and various sizes of supporting O‑rings for cylinder reassembly.

Q: Where is this cylinder seal kit mounted on mini excavator?
A: These sealing assemblies are installed inside cylinder barrel and cylinder head, surrounding piston and reciprocating bucket cylinder rod.

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.

5. Exhibition and Wearhous

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