Kubota KX121-2 & KX161 Main Pump | KYB PSVD2-17E-19, PSVD2-21E, PSVD2-27E | Hydraulic Pump for KX155, KX185

KYB PSVD2 Series Hydraulic Main Pump for Kubota KX Excavators

Product Overview: The KYB PSVD2 series stands as the premier power source for Kubota KX121-2, KX155, KX161, and KX185 compact excavator hydraulic systems. Featuring a highly integrated architecture of dual axial piston pumps and multiple auxiliary gear pumps, this series delivers multiple independent hydraulic outputs from a single compact unit. Featured models such as the PSVD2-17E-19 and PSVD2-21E-11 are specifically calibrated for Kubota’s high-precision control and robust digging force requirements, ensuring smooth and efficient multi-function movements during traveling, swinging, and boom operations.

Key Technical Advantages:

• Highly Integrated Architecture: Combines high-pressure variable piston pumps with auxiliary gear pumps on a single drive shaft, perfectly fitting the constrained engine compartments of the Kubota KX series.

• Precision Power Distribution: Optimized valve plate designs for models like the KX161/KX155 ensure exceptional synchronicity during multi-valve operations, significantly increasing jobsite cycle speeds.

• Heavy-Duty Extended Life: Built with high-strength cast iron housings and hardened rotating groups to maintain stability under rated pressures of 21-25 MPa (3000-3600 PSI), offering superior wear resistance.

• Superior Self-Priming Performance: Hydrodynamically optimized suction passages suppress cavitation at high RPMs, extending the service life of bearings and internal components.

• 100% OEM Standard Compatibility: Manufactured to strict Kubota factory specifications, ensuring splined shafts, mounting flanges, and porting align perfectly for a seamless “drop-in” replacement.

Detailed Models & Parameters:

• Core Series: KYB PSVD2 Series.

• Representative Models: PSVD2-17E-19, PSVD2-21E, PSVD2-21E-11, PSVD2-27E.

• Compatible Models: Kubota KX121-2, KX155, KX161, KX185, U35, U45.

• Displacements: 17.2, 21.0, 27.0 cm³/rev.

• Pressure Ratings: Piston section rated at 21-25 MPa (3000-3600 PSI); Gear section rated at 20 MPa (2900 PSI).

• Rotation: R (Clockwise/CW).