Kubota KX121-3 Main Pump | KYB PSVL-42CG, PSVL-54CG-13 | Hydraulic Piston Pump
| Model Number | PSVL-42CG, PSVL-54CG-13, PSVL-42CG-8 |
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Product Description
KYB PSVL Series Hydraulic Main Pump for Kubota KX121-3 Excavator
Product Overview: The KYB PSVL series stands as the quintessential power source for the hydraulic systems of Kubota KX121-3 and other KX-series compact excavators. Featured models PSVL-42CG-8 and PSVL-54CG-13 are specifically engineered to meet the high-load demands of 3.5 to 5-ton machinery. Utilizing advanced load-sensing technology, these pumps modulate flow instantaneously based on operational demand, ensuring precise power distribution and smooth multi-function movements while significantly reducing fuel consumption.
Key Technical Advantages:
Precision Load-Sensing Control: Automatically adjusts pump output to match system demand, minimizing relief losses and effectively lowering hydraulic fluid temperatures.
High-Response Variable Mechanism: Optimized for KX121-3 duty cycles, providing rapid displacement switching for more sensitive and efficient digging operations.
Reinforced Heavy-Duty Construction: Built with high-strength materials and precision-lapped components to maintain exceptional volumetric efficiency under rated pressures of 23-25 MPa.
Quiet Operation & Durability: Optimized internal fluid passages suppress hydraulic pulsation and noise, extending the service life of bearings and seals.
100% OEM Standard Compatibility: Manufactured to strict Kubota factory specifications, ensuring splined shafts and mounting flanges align perfectly for a seamless “drop-in” replacement.
Detailed Models & Parameters:
Core Series: KYB PSVL Series.
Compatible Models: Kubota KX121-3, KX101, U35, U45.
Representative Models: PSVL-42CG, PSVL-42CG-8, PSVL-54CG-13, PSVL-54CG.
Displacements: 42 cm³/rev / 54 cm³/rev.
Pressure Ratings: Rated at 24.5 MPa (3500 PSI) continuous; Peak capability up to 28 MPa.
Rotation: R (Clockwise/CW).




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