Products

RITO Boom Cylinder 187-8959 187-8960 216-4322 325CL 325C 325C L 322C 325D 329D Industrial Grade Excavator Hydraulic Cylinders

Structural arm sagging during high-tier truck loading compromises jobsite safety and slows down production metrics. When main boom lifters experience internal fluid bypass, your excavator loses its fundamental lifting capacity and precise positioning response. Protect your heavy 325CL, 325C, or 325C L excavators from sudden structural dropping.

  • Item NO.:

    325CL Boom Cylinder
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Re-establish absolute arm stability with the heavy-duty RITO Boom Cylinder 187-8959. Engineered as an Industrial Grade Excavator Hydraulic Cylinder, this robust unit contains specialized wear rings and premium high-pressure seals, delivering reliable hoisting force for 322C, 325D, and 329D frames managed by distribution partners.

325CL  Boom Cylinder

 
Product Specifications

Part Number  187-8959 / 187-8960 / 216-4322
Part Name Excavator Hydraulic Boom Cylinder
Compatible Brand CAT
Applicable Models 325C, 325CL, 325C L, 322C, 325D, 329D
Application Excavator hydraulic system
Material High Grade Carbon Structural Seamless Steel
Product Color Premium Equipment Yellow
Working Temperature -35 to 125 degrees Celsius
Key Function Main Boom Hoisting and High-Load Structural Support
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

High-Yield Seamless Steel Barrel Wall

resists severe cross-sectional bulging under max load, maintaining consistent piston travel path alignment.

Leak-Free

Micro-Polished Hard Chrome Rod Finishing

reduces seal friction coefficient dramatically, preventing premature exterior oil weeping across intense cycles.

Direct Fitment

Thick-Section Polyurethane U-Cup Packings

withstand unrelenting pressure spikes, retaining absolute load holding positioning when holding heavy attachments aloft.

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: Fault Diagnosis: What tests can workshop mechanics perform to isolate a boom cylinder drift issue down to internal seal bypassing?
A: Extend the boom fully, lock the control valve, disconnect the cylinder rod-end hose safely, apply load, and observe if oil streams out of the open port.
 
Q: Installation: Why is proper bleeding of the main boom cylinders critical before releasing the machine back into service?
A: Trapped air pockets cause severe hydraulic sponginess, destructive diesel effect ignition, and internal seal burning due to micro-dieseling phenomena during rapid extension.
 
Q: Compatibility: Will this specific cylinder shell replace all structural cross-references within this medium excavator block?
A: Yes, this item directly replaces parts 187-8959, 187-8960, and 216-4322, matching original dimensions across Caterpillar 325C and 325D lifter layouts.
 
Q: Extreme Environment Performance: How do the integrated rod wipers protect the main seal group in dusty mining operations?
A: The double-lip metal-cased scraper aggressively clears hard packed mud, ice, and fine silica dust from the rod surface before it passes through pressure seals.
 

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

Leave A Message
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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