Excavator Hydraulic Piston 191‑5709 For CAT 318C 319C 320C

Keywords: 191‑5709, 1915709, Excavator Hydraulic Piston, CAT Pump Piston, 318C Spare Parts, 319C Hydraulic Component, 320C Replacement Piston, Construction Machinery Spare Parts

🔹Product Overview

This hydraulic piston Part No.191‑5709 is a core precision component specially designed for Cater-pillar excavator 318C, 319C, 320C. It works inside hydraulic pump assembly, converts mechanical power into hydraulic pressure energy, ensuring stable output of hydraulic flow for excavator working devices. Our aftermarket hydraulic piston is precisely manufactured and dimension‑calibrated according to OEM specifications, adopting high‑strength wear‑resistant material, featuring high surface hardness, good anti‑friction performance, stable performance under heavy‑load and continuous operation conditions. It is a reliable aftermarket spare part for hydraulic pump repairing and excavator overhaul.

🔹Detailed Specifications

🔹Key Features & Advantages

• ✅ Exact OEM Dimension Tolerance Precision machining for outer diameter, length and end face, perfectly match original pump assembly, direct installation without modification.
• ✅ High‑Strength Wear‑Resistant Material Special material and surface treatment, effectively reduce abrasion during high‑speed reciprocating movement.
• ✅ Fine Polished Surface Low friction coefficient, reduce internal heat generation of hydraulic pump, avoid pull‑cylinder and abnormal wear failure.
• ✅ Strict Pre‑Shipment Inspection Each piston is strictly checked on size, surface and hardness before shipment to guarantee assembling and using performance.
• ✅ Adapt To Harsh Construction Site Resist impact and heavy‑pressure working condition, keep stable hydraulic output for long‑time excavator operation.

🔹Application Scope

Compatible Equipment List: ‑ CAT Excavator: 318C, 319C, 320C ‑ Used for main hydraulic pump maintenance, solving insufficient power, noise and pressure dropping problems.

🔹Our Company Advantage

We are professional supplier of full‑range excavator and diesel engine spare parts, supplying hydraulic pump parts, engine rebuild kits, sensors, solenoid coils and other replacement spare parts. ‑ Large ready stock for various CAT excavator hydraulic accessories ‑ Factory direct wholesale competitive price ‑ Mixed‑order & one‑stop spare‑parts procurement supported ‑ Professional part‑number matching technical support service

🔹Packaging & Shipping ‑

Inner shock‑proof protective package to prevent collision damage in transit ‑ Outer reinforced export carton for long‑distance sea and land transportation ‑ Multiple shipping selections: sea freight, air freight, international express for small trial orders ‑ Export documents including Commercial Invoice, Packing List can be provided

🔹Contact Us

If you need more excavator spare parts or other construction machinery replacement components, please send your parts list to us. We will offer our best quotation for you quickly.