Bomba hidráulica Hitachi 9151416 9153026 para midi escavadora Hitachi ZX120-6

ZX120‑6 Hydraulic Pump for Hitachi Excavator spare parts 9151416 9153026 Axial Piston pump Aftermarket

Product Brief

This aftermarket variable axial piston main pump, part numbers 9151416 and 9153026, serves as the central hydraulic power source built for Hitachi ZX120‑6 12‑ton class crawler excavator. It converts rotational power delivered by the engine into controllable high-pressure hydraulic oil flow, supporting combined actions of bucket digging, boom lifting, arm crowding, machine slewing and track travelling. Widely adopted in urban trench work, landscaping renovation, small quarry loading and residential foundation construction, this replacement pump is highly favored by overseas repair shops, equipment rental operators and cross-border spare part dealers for hydraulic system overhaul and direct pump replacement of Hitachi ZX120‑6 machine fleets.

During long-duration site operation under fluctuating loads, contaminated hydraulic oil and continuous pressure cycling, the original pump will gradually develop cylinder barrel scuffing, piston shoe abrasion, valve plate wear and growing internal leakage. Typical failure signs include weakened digging force, sluggish combined movements, power drop when handling heavy loads, rising hydraulic oil temperature, abnormal rattling noise generated from pump housing and unstable machine response. Once severe internal damage appears, the whole hydraulic system loses output capacity, resulting in machine shutdown, expensive on-site repair bills and delayed construction schedules for equipment owners.

Our aftermarket hydraulic pump strictly follows original sample standards for mounting flange size, drive shaft spline, oil port layout and regulator pressure setting. No extra drilling, cutting or gasket modification is required during field installation. Mechanics can finish pump replacement smoothly to reduce machine downtime effectively. Compared with costly genuine pumps with long procurement lead times, this hydraulic pump delivers stable working performance and meets bulk repeat purchasing requirements for global merchants specializing in Hitachi medium excavator hydraulic spare parts.

Product Highlights

1. Perfect interchangeability to speed up on-site hydraulic repair
All flange dimensions, oil port positions and drive shaft spline parameters match original specifications. Maintenance technicians can complete pump swap without secondary machining, improving overhaul efficiency for repair centers and used excavator refurbishment jobs.

2. Upgraded friction pair design to adapt varied working loads
Many low-cost substitute pumps quickly lose volumetric efficiency when running with unclean hydraulic fluid containing fine metal particles. Our core internal friction parts adopt upgraded heat treatment plus precision surface grinding craft, enhancing cavitation resistance and wear resistance, extending service life for ZX120‑6 excavators working in diversified small and medium construction sites.

3. Full performance inspection before product shipment
Every finished hydraulic pump undergoes pressure holding test, flow calibration and noise detection on dedicated hydraulic test bench before packing. Defective products are screened out inside factory, lowering rework risks for service crews and preventing sudden hydraulic system breakdown at construction sites.

4. Cost-effective aftermarket solution for medium excavator fleet maintenance
Genuine main pumps for Hitachi ZX120‑6 come with high purchase price and unstable stock supply. Our factory-direct replacement pump balances reliable hydraulic output and competitive cost, helping equipment owners and service workshops cut overall fleet maintenance expenditure.

5. Multiple shipping options for bulk order buyers
In-stock products support fast shipment after payment confirmation. Air freight service is available for urgent emergency breakdown orders. Sea consolidation and full-container transport plans help overseas bulk purchasers reduce comprehensive logistics costs.

Factory Production Strength

Our manufacturing plant focuses on R&D and mass production of aftermarket hydraulic spare parts for Japanese medium-sized excavators, covering axial piston main pumps, pilot pumps and related hydraulic accessories. We have complete production workflows including alloy steel precision machining, surface heat treatment, component assembly and finished-product hydraulic bench testing. Simulated variable pressure cyclic durability tests are carried out to verify part durability under real-world municipal and earthmoving operating environments. Our spare parts are exported to multiple overseas markets and maintain long-term stable cooperation relationships with global construction machinery spare part wholesalers.

Frequently Asked Customer Questions

Q1: Can this 9151416 9153026 hydraulic pump fit other Hitachi excavator models?
A1: Cross-model installation is not recommended. Different main pumps differ in shaft spline, displacement and oil port arrangement. Please double-check machine model and original part number before placing orders.

Q2: What hydraulic faults can this main pump fix?
A2: It solves malfunctions caused by internal component wear: insufficient digging power, slow compound movements, high hydraulic oil temperature, internal leakage, abnormal pump noise and insufficient load capacity.

Q3: Is tiered discount available for bulk quantity orders?
A3: Yes, preferential price is offered according to purchase volume. Full-container sea freight arrangement can be supported to reduce total logistics expense.

Q4: What export-grade packaging is used for long-distance overseas transit?
A4: Anti-rust oil is applied on all precision mating surfaces. The pump is wrapped with waterproof anti-rust film and shock-absorbing foam, then fixed inside reinforced plywood case, protecting precision internal components from collision and rust during long ocean shipping.