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RITO Piston Shoe K5V140DT Professional Piston Pump Plunger Head DX300LC S300LC-V R290LC-7 R300LC-7 Excavator Main Pump Hydraulic Pistons

Heavy mining and construction sites often face main pump plunger wear, hydraulic pressure drop, slow movement and frequent part replacement, raising operation downtime and maintenance expenses. K5V140DT Piston Shoe fits DX300LC, S300LC-V, R290LC-7, R300LC-7 excavators perfectly, meeting bulk procurement demands for wholesalers, agents and mine end clients.

  • Item NO.:

    K5V140DT Piston shoe
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Our K5V140DT plunger assembly delivers the robust sealing and structural integrity required by demanding main hydraulic pumps. This premium bimetal component minimizes friction and power loss to maintain steady digging forces. For wholesalers, stocking this K5V140DT part means providing a dependable, low-maintenance product that secures repeat B2B orders.

K5V140DT Piston shoe

 
Product Specifications

Part Number  K5V140DT
Part Name Hydraulic Pump Piston Shoe Plunger Head
Compatible Brand Handok
Applicable Models DX300LC S300LC-V R290LC-7 R300LC-7
Application Excavator hydraulic system
Material High‑strength Alloy Steel
Product Color Natural Steel
Working Temperature -30°C to 115°C
Key Function Fluid displacement and hydrostatic pressure creation
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Robust Pressure Retention

Manufactured to exact tolerances to guarantee a perfect seal inside the cylinder block, eliminating internal oil bypass and maintaining steady system pressure.

Leak-Free

Bimetal Wear Protection

Features a high-strength steel body bonded with a premium copper alloy face to resist high-frequency friction and prevent galling under heavy loads.

Direct Fitment

Stable Hydraulic Balance

Designed with precise internal oil passages to ensure proper hydrostatic lubrication between the piston shoe face and the pump swash plate.

Rigorous Testing

 Multi-Tier Quality Options

We provide Original, OEM, and Premium Aftermarket grades, allowing distributors to meet diverse client budgets and performance needs.

 

Excavator Hydraulic Part

FAQ


Q: How do I diagnose worn K5V140DT piston shoes before the main pump fails?
A: Watch for a noticeable drop in hydraulic speed under heavy load, excessive heat generation around the pump casing, or unusual whining noises. Finding copper flakes during a hydraulic oil filter inspection is a clear indicator of shoe wear.
 
Q: What installation precautions are required when replacing these K5V140DT pistons?
A: You must replace the pistons as a complete set and check the swash plate surface for scoring. Lubricate each K5V140DT plunger with clean hydraulic oil before insertion, and verify that the retainer plate clearances meet factory specifications.
 
Q: Is this piston shoe fully compatible with both Doosan and Hyundai excavators?
A: Yes, as long as the machines use the K5V140DT main pump. This includes common 30-ton class models like the Doosan DX300LC, S300LC-V, and Hyundai R290LC-7 or R300LC-7, making it a highly versatile stock item.
 
Q: How does this K5V140DT piston assembly perform in harsh mining environments?
A: The specialized bimetal material maintains structural stability and hardness up to 115°C. It is designed to handle continuous high-stress cycles in extreme conditions, provided the hydraulic fluid remains free of abrasive particles.
 
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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