Stick cylinder performance loss in excavators is often linked to internal pressure bypass rather than external leakage, where worn sealing interfaces allow hydraulic oil to escape under load and reduce lifting stability. 4448399 arm cylinder seal kit is designed for Hitachi ZX200 excavators, restoring sealing integrity inside the stick cylinder to recover smooth extension and retraction behavior.
Item NO.:
4448399Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time：
2-3 DAYS
| Part Number | 4448399 |
|---|---|
| Part Name | Arm Cylinder Seal Kit |
| Compatible Brand | Hitachi |
| Applicable Models | ZX200 |
| Application | Excavator |
| Material | NBR / PU / PTFE Composite Seal Materials |
| Product Color | Mixed Industrial Seals |
| Working Temperature | -35°C to 120°C |
| Key Function | Restores cylinder sealing and pressure holding capability |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |
Restores internal sealing efficiency to maintain stable hydraulic force during arm operation.
Targets distributed wear areas inside piston, rod, and buffer sealing zones.
Improves smoothness of cylinder extension and retraction under variable load.
FAQ
A: We provide original, OEM, and high-quality aftermarket versions with stable supply capability.
Q:Why Choose RITO?
A:Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies
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