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RITO Drive Shaft 225-4541 325DL SBS140 2254541 Hydraulic Pump Main Drive Shaft Spline Shaft Excavator Pump Repair Part

Main drive shaft failure completely cuts off power to the hydraulic system, stranding your excavator on the job site. The RITO 225-4541 Hydraulic Pump Main Drive Shaft provides the high torsional strength needed to handle heavy workloads. Upgrading to this premium shaft prevents unexpected breakdowns and keeps your equipment running reliably.

  • Item NO.:

    225-4541
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details
Worn drive splines can slip and damage the engine flywheel coupler, leading to expensive engine-side repairs. Designed for 325DL excavators running SBS140 pumps, this precision-ground shaft ensures tight engagement and smooth power transfer to protect your entire drivetrain.

225-4541 Drive Shaft

 
Product Specifications

Part Number  225-4541, 2254541
Part Name Hydraulic Pump Main Drive Shaft Spline Shaft Repair Part
Compatible Brand Caterpillar
Applicable Models 325DL (SBS140 Main Hydraulic Pump)
Application Excavator hydraulic system
Material Carburized high-alloy structural steel
Product Color Natural Steel Finish / Anti-Rust Oil Coated
Working Temperature -25 to 110 Degrees Celsius
Key Function Main input drive power transmission from engine to pump
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

High Torsional Strength

Engineered to absorb sudden torque loads from heavy excavation work without twisting.

Leak-Free

Precision Spline Profiles

Micro-ground splines ensure tight engagement with the flywheel coupling to eliminate play.

Direct Fitment

Direct Pump Integration

Tailored specifically as a direct replacement component for 325DL and SBS140 pumps.

Rigorous Testing

Direct OEM Fitment

Manufactured strictly to original factory tolerances, ensuring a seamless replacement process that avoids costly modifications or installation delays.
 

 

Excavator Hydraulic Part

FAQ


Q: What is the mechanical difference between main shaft 225-4541 and pinion shaft 2254542 in an SBS140 pump?

A: The 225-4541 is the primary input drive shaft that connects directly to the engine flywheel via the flexible coupling, whereas the pinion shaft drives the secondary pump group. Both work together to run the tandem pump system.

 

Q: Should we replace the flexible engine coupling when installing a new main drive shaft?

A: Yes, we highly recommend replacing the rubber coupling. A worn, hardened coupling cannot absorb engine vibrations properly, which puts excessive radial stress on the new shaft and shortens pump bearing life.

 

Q: What quality control steps does this shaft undergo to prevent internal structural defects?

A: Every shaft undergoes ultrasonic non-destructive testing to ensure there are no internal micro-voids or structural flaws. This ensures the steel can handle high torsional stress without cracking under pressure.

 

Q: Can this drive shaft be used in older SBS120 pump models, or is it strictly for the SBS140?

A: This shaft is engineered specifically for the dimensions and spline configurations of the SBS140 pump found in the 325DL series. Please check your pump nameplate or consult our team to verify fitment for older pump models.

 

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 Companie
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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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