Гидронасос KYB PSVL-54CG-16 для мини-экскаватора Kubota U50

U50 Hydraulic pump for Kubota Excavator spare parts PSVL‑54CG‑16 Axial Piston pump Aftermarket

Product Overview
This aftermarket variable‑displacement axial piston main pump is the core hydraulic power source specially built for Kubota U50 series mini excavator, model PSVL‑54CG‑16. It delivers high‑pressure hydraulic oil to drive boom, arm, bucket, travel and swing movements for small‑scale earth‑moving, garden renovation, municipal pipeline trenching and indoor demolition projects. Compact mini excavators frequently operate under fluctuating load conditions, and long‑time service may trigger typical pump failures including insufficient output pressure, internal leakage, slow implement response and abnormal pump housing noise. This replacement hydraulic pump strictly replicates original mounting flange, spline shaft, port layout and variable displacement control structure. It supports direct bolt‑on installation without pipe reworking or bracket modification, greatly cutting repair cycle and maintenance expenditure for repair workshops, rental fleet operators and end‑users of compact construction machinery.

Product Highlights

1. Carefully‑selected wear‑resistant internal components: Core friction assemblies such as pistons, valve plate and swash plate adopt high‑grade alloy steel, processed with precise heat‑treatment technology to enhance anti‑abrasion and anti‑fatigue property. It effectively suppresses internal leakage even under continuous cyclic pressure fluctuation, maintaining stable pump performance during long‑hour site shifts.

2. Strict dimensional fidelity to original design: All flow ports, mounting hole positions and spline parameters are manufactured according to OEM drawing standards. Good physical interchangeability avoids on‑site reaming, welding or adjustment work, helping service technicians finish pump replacement efficiently and shorten machine downtime.

3. Rigorous bench testing before delivery: Each assembled pump is completed inside dust‑controlled workshop. Every unit will go through full‑flow pressure test, leakage inspection and variable‑displacement response test. Stable flow output can be guaranteed under variable working load, realizing smooth and coordinated excavator implement movement during digging, grading and attachment operation.

4. Cost‑effective aftermarket replacement solution: Compared with high‑cost genuine original pump, this aftermarket unit delivers reliable comprehensive performance. It is an ideal stocking selection for spare‑parts distributors, mini‑excavator repair shops, equipment rental companies and used‑machine refurbishment projects.

Manufacturing & Quality Control

Our factory accumulates rich experience in producing KYB‑series replacement hydraulic pumps for compact excavators. All incoming raw castings and alloy steel parts will pass incoming quality inspection. Key friction pairs including piston shoes, valve plate and swash plate are finished by high‑precision grinding machines. Every finished pump must complete full‑performance bench test covering pressure, flow rate and internal leakage indicators. Units failing testing will be eliminated before packing. Qualified pumps are wrapped with anti‑rust protective film, cushioned with shock‑proof foam and packed inside heavy‑duty carton case to prevent collision damage and moisture rust during cross‑border sea and land transportation.

FAQ
Q: Can this hydraulic pump fit other Kubota mini excavator models?
A: This pump is mainly designed for Kubota U50 series excavators. Before placing your order, please verify your old pump model marking PSVL‑54CG‑16 to prevent incorrect purchase.

Q: What preparation work is required during pump installation?
A: You need to thoroughly clean hydraulic oil tank, replace hydraulic filter and return filter elements. Fill clean hydraulic oil into pump inner cavity before startup to avoid dry‑run damage to internal piston assemblies. Check and tighten all hydraulic pipe connections to prevent air suction.

Q: What is covered by after‑sales support?
A: We provide standard warranty for manufacturing‑related defects. Damage resulting from improper installation, contaminated hydraulic oil and long‑term over‑load operation is not included within warranty scope. Please follow regular hydraulic system maintenance requirements.

Q: What is your delivery lead‑time?
A: In‑stock goods can be shipped out within 3‑7 working days. Multiple logistics solutions including sea freight, air freight and express courier are available for bulk orders and urgent orders from global clients.