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RITO 4448395 4448397 Excavator Bucket Cylinder Seal Kit 4467381 ZX160 ZX180WHydraulic Cylinder Seal Kit for Hitachi 4463493 4448400

A blown bucket seal doesn't just leak oil; it kills site momentum and drains your maintenance budget. Constant pressure spikes shred low-quality seals in days. Our 4448400 kit creates a fortified seal barrier, eliminating hydraulic drift and turning costly downtime into consistent digging power.

  • Item NO.:

    4467381
  • Order(MOQ):

    1
  • Payment:

    T/T, WESTERN UNION, CHINESE BANK,PAYPAL
  • Product Origin:

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Masterfully built for Hitachi ZX160 and ZX180W units, the 4467381 repair solution combines high-flex polymers with pinpoint accuracy. It’s the ultimate fix for restoring original bucket speed. Rely on RITO to simplify your global procurement and keep your heavy machinery in perfect rhythmic balance.

4467381 Bucket Cylinder Seal Kit

 
Product Specifications

Part Number  4448400, 4448395, 4448397
Part Name Excavator Bucket Cylinder Seal Kit
Compatible Brand NOK (Japan)
Applicable Models ZX160, ZX180W, ZX180LC
Application Excavator hydraulic system
Material TPU, NBR, and PTFE
Product Color Multi-color
Working Temperature -35°C to 110°C
Key Function Hydraulic Fluid Sealing and Bucket Cylinder Repair
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

High-Tension Sealing

Ensures the piston remains locked under peak hydraulic loads, preventing the bucket from slipping or losing force during critical excavation tasks.

Leak-Free

Dynamic Friction Reduction

Features a low-friction PTFE coating on inner rings to minimize heat generation, preserving the integrity of the cylinder rod even during rapid cycle times.

Direct Fitment

Drop-in Compatibility

Specifically engineered to the 4448395 blueprint, allowing for an effortless swap that requires zero modifications and guarantees an airtight hydraulic fit.

Rigorous Testing

Abrasive Grit Protection

The ruggedized rod wiper functions as a frontline defense, scraping off mud and silica particles before they can enter and contaminate the hydraulic circuit.
 
 

 

Excavator Hydraulic Part

FAQ


Q: How do I identify internal bypass in the 4448400 seal kit?
A: If the bucket drifts without input but no external oil is visible, the internal piston seals of the 4448400 kit have likely failed. This internal leak allows oil to move between cylinder chambers, leading to sluggish performance and increased fuel consumption.
 
Q: What are the vital installation technical requirements for these Hitachi seals?
A: Beyond cleaning, ensure the seal grooves are inspected for metallic debris. When installing the 4467381 rod seal, use a "kidney fold" technique cautiously to avoid permanent kinking. Proper lubrication and checking the gland nut torque are essential for a long-term leak-free result.
 
Q: How can I be 100% sure this kit fits my Hitachi ZX160/ZX180W?
A: This kit is the direct equivalent for OEM numbers 4448395, 4448397, and 4463493. To confirm, match the number of internal components in your old kit with our 4467381 manifest or verify the boom/stick/bucket cylinder coding on your machine's identification plate.
 
Q: Does this seal kit maintain performance in sub-zero or desert mining climates?
A: Yes, our specialized TPU blend is rated for -35°C to 110°C. It prevents the seals from shrinking and cracking in arctic conditions and resists the softening or "extrusion" that causes failure during high-frequency operation in intense desert heat.
 

Q: What quality options are available?

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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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

Leave A Message

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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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