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RITO 4067834 Joint Rubber Assy Return Piping Oil Tank Coupling EX100 EX120 ZX200 120C 200CLC Excavator Flexible Drive Coupling

Low-grade rubber couplings swell and degrade when exposed to hot hydraulic oil, causing catastrophic splits and sudden fluid loss. For heavy machinery operators, a ruptured tank coupling halts field production immediately and risks introducing abrasive dirt into the main hydraulic loop.

  • Item NO.:

    4067834
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Protect your reservoir system with the 4067834 rubber joint assembly. Custom-molded for EX100, EX120, ZX200, 120C, and 200CLC excavators, this oil-resistant flexible drive coupling absorbs system pulses, stops leaks, and seals out contaminants perfectly.

4067834 Coupling Assembly

 
Product Specifications

Part Number  4067834
Part Name Return Piping Oil Tank Joint Rubber Coupling
Compatible Brand Hitachi
Applicable Models EX100, EX120, ZX200, 120C, 200CLC
Application Excavator hydraulic system
Material Oil-Resistant Nitrile Rubber (NBR) with Reinforced Fabric Layer
Product Color Metallic Silver
Working Temperature -30 to 100 Degrees Celsius
Key Function Connecting return hydraulic piping to the oil tank while dampening system vibrations
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Oil-Swell Resistance

High-grade NBR compound maintains its shape and density despite hot oil exposure.

Leak-Free

Vibration Absorption

Flexible rubber structure absorbs engine pulses to protect connected piping from cracks.

Direct Fitment

Perfect Clamping Fit

Precision molded lip diameter ensures tight, secure hose-clamp sealing.

Rigorous Testing

Global Supply Tiering

We offer Original, OEM, and high-performance Aftermarket options to provide flexible procurement strategies for diverse regional markets.
 
 

 

Excavator Hydraulic Part

FAQ


Q: What visual failure features suggest a return piping rubber joint requires replacement?
A: Softening or swelling of the rubber body, external cracking along the bends, oil weeping near hose clamps, and loss of structural elasticity under manual pressure.
 
Q: What are the installation technical requirements for this flexible rubber joint?
A: Clean the metal mating pipes thoroughly, slide the rubber joint into place without twisting it, and position the heavy-duty T-bolt clamps evenly over the sealing ribs to secure it.
 
Q: How do procurement managers ensure this rubber coupling fits their excavator fleet?
A: Cross-verify the OEM part number 4067834. It is specifically tailored for the hydraulic tank return lines of EX100, EX120, ZX200, 120C, and 200CLC units.
 
Q: Does this rubber component perform reliably under continuous high-load hydraulic heat?
A: Yes, it is manufactured with an advanced polymer blend that withstands continuous oil temperatures up to 100 degrees Celsius without turning brittle or tearing apart.
 
Q: How does stocking RITO rubber joint assemblies benefit regional parts distributors?
A: It offers a high-turnover maintenance product line that matches OEM performance exactly, reducing warranty replacements and retaining customer loyalty.
 

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.

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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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