مضخة هيدروليكية Kawasaki K5V160DTH-K9Y14 لـ حفارة Sumitomo SH350A3 SH350-3

SH350A3 SH350‑3 Hydraulic Pump for Sumtiomo Excavator spare parts K5V160DTH‑K9Y14 Aftermarket

Product Overview

When a 35‑ton class machine like the Sumitomo SH350A3 or SH350‑3 works in a quarry or on mass excavation, nothing matters more than a hydraulic system that holds its pressure hour after hour. The K5V160DTH‑K9Y14 pump is the unit that supplies that pressure — a large tandem axial piston pump whose two sections feed the implement circuit and the travel/swing circuits in parallel. Because it moves serious volume at serious pressure, its condition is felt immediately across the whole machine: when it starts to wear, the boom refuses to lift at the same speed, the bucket curl feels soft, travel drags on grades, and the hydraulic oil temperature sits high even on a normal shift. A growing pump whine is the audible confirmation that internal leakage is rising. Continuing to run in that state is false economy — scored pump surfaces can take out control valves and motors with them. This aftermarket K5V160DTH‑K9Y14 is built to the original geometry and control settings, so the worn pump can be exchanged directly and the machine returns to its rated digging performance.

Core Advantages

1. Large‑displacement output that restores full digging capability
This pump carries the volume a 35‑ton machine needs. Replacing a worn unit with a correctly specced K5V160DTH‑K9Y14 brings back cycle times that sagged gradually — the kind of recovery operators notice on the first dig.

2. Hardened friction surfaces for sustained high‑pressure duty
Piston shoes, cylinder block and valve plate are engineered for the high pressures a quarry machine demands. Tight finished clearances keep internal leakage low, which means cooler oil and steady pressure through long shifts.

3. Regulator behaviour matched to the SH350 power package
The pump's control follows the original calibration, so it loads the engine smoothly and delivers the right flow at the right pressure. Digging stays powerful, and the hydraulic system avoids the overheating that mismatch pumps cause.

4. Direct‑fit installation for a machine earning large daily rates
On a 35‑ton machine, downtime is expensive. The pump reproduces the original flange, spline and port layout, so removal and refitting follow the standard service sequence — fast, clean and predictable.

5. A strong aftermarket alternative for a high‑value machine
An original pump exchange on a 35‑ton excavator is a major investment. This aftermarket unit delivers dependable performance at a far more manageable cost, with sample and batch supply for fleets running several SH350 machines.

Manufacturing & Quality Control

Production is controlled end to end: incoming material verification, precision machining, heat treatment of wear surfaces and clean assembly. Each finished pump is bench‑tested for pressure, flow and noise before packing, and only units meeting the acceptance criteria are released. Anti‑rust preservation and shock‑absorbing export packing protect the assembly during long‑distance transport; batch test data can be supplied on request.

Frequently Asked Questions

Q1: How do I confirm this pump suits my SH350 machine?
A: Check the pump model tag on your existing unit and share the machine serial number. The SH350A3 and SH350‑3 share this pump platform, but build‑year variants can differ, so we verify before dispatch.

Q2: Can I reuse the existing regulator and piping?
A: Yes, the pump matches the original control interface and port layout, so existing piping and a serviceable regulator transfer directly. Damaged regulator parts are available separately.

Q3: What system maintenance protects the new pump?
A: Renew hydraulic oil and filters, flush contamination from the circuit, bleed the system after installation and run a no‑load warm‑up before returning to full production.

Q4: What is the warranty coverage?
A: Manufacturing and material defects are covered. Damage from contaminated oil, wrong fluid, foreign objects in the circuit, overload operation or incorrect installation is excluded; please follow the Sumitomo service manual for commissioning.