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RITO 3117406 Hydraulic Piston Pump 311-7406 E319DLN 319D 318D 315D 312D Excavator Main Hydraulic Pump Assembly for CAT

Hydraulic lag, weak digging force, and repeated pump failures can seriously affect mining and construction schedules. The 3117406 hydraulic piston pump is designed for wholesalers, equipment dealers, and fleet operators needing dependable hydraulic power for CAT excavators in high-load job sites.

  • Item NO.:

    311-7406
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Compatible with E319DLN, 319D, 318D, 315D, and 312D excavators, the 3117406 main pump assembly delivers efficient oil pressure control, fast hydraulic response, and improved durability. Compared with ordinary replacement pumps, it offers stronger sealing performance and more stable operation in continuous working conditions.

 

311-7406 Hydraulic Pump

 
Product Specifications

Part Number  311-7406
Part Name Hydraulic Pump
Compatible Brand Caterpillar
Applicable Models E319DLN, 319D, 318D, 315D, 312D
Application Excavator
Material High-strength alloy steel
Product Color Gray, Black, Yellow
Working Temperature -20°C to 90°C
Key Function Supply hydraulic oil pressure and power transmission
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Efficient Power Transmission

Provides steady hydraulic flow for smoother arm, boom, and bucket operation under heavy workloads.
 
 
Leak-Free

Enhanced Wear Resistance

Manufactured with durable internal components to reduce friction and extend service life.
Direct Fitment

Accurate Equipment Matching

Designed for precise installation and stable integration with CAT excavator hydraulic systems.
 
Rigorous Testing

Reliable High-Load Performance

Maintains stable pressure output during quarry, construction, and long-hour excavation tasks.

 

Excavator Hydraulic Part

FAQ


Q: How can I identify whether the hydraulic pump is failing?
A: Common symptoms include weak excavation force, abnormal hydraulic noise, oil leakage, overheating, or unstable machine movement during operation.
 
QHow do I confirm compatibility before purchasing?
A: Please verify the machine model, original pump number, and hydraulic system specifications before ordering the 3117406 pump.
 
QWhy is hydraulic pressure unstable after pump replacement?
A: Possible causes include trapped air in the system, contaminated hydraulic oil, improper calibration, or damaged control valves.
 
Q: Is the overall performance and assembly consistency the same for batch orders?
A: Every unit undergoes strict factory debugging and testing, keeping stable interchangeability for wholesale and fleet project maintenance.
 
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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