PC250-6L PC250LC-6L Hydraulic Arm Cylinder for Komatsu Excavator Spare Parts 206-63-02521 Aftermarket High Quality
| Hydraulic Parts | Hydraulic Pump | Final Drive | Travel Reduction |
| Swing Motor | Swing Reduction | Control Valve | Gear Parts |
| Slew Bearing | Engine Assembly | Hydraulic Cylinder | ECU |
The 206‑63‑02521 hydraulic arm cylinder is a core load‑bearing component customized for Komatsu PC250‑6L and PC250LC‑6L mid‑heavy excavators. Precision‑calibrated to OEM mounting sizes and hydraulic pressure parameters, it supports direct plug‑and‑play replacement, delivering steady arm digging and lifting performance for general construction, roadwork and earthmoving projects.
| Parameter | Product & Logistics Details |
|---|---|
| Application | Mid‑Heavy Construction Excavator Hydraulic System |
| Part Name | Hydraulic Arm Cylinder |
| Compatible Model | Komatsu PC250‑6L / PC250LC‑6L |
| Part Number | 206‑63‑02521 |
| Quality Grade | High‑Quality Aftermarket |
| Certifications | ISO9001, CE |
| Warranty | 12‑Month Full Warranty |
| Minimum Order Quantity | 1 Piece |
| Delivery Lead Time | 3‑7 Days (Air Express) |
| Shipping Methods | Express, Land, Sea, Railway Freight |
| Payment Options | T/T, Trade Assurance, PayPal |
Built under ISO9001 quality management systems, this arm cylinder adopts high‑strength seamless steel barrel suited for mid‑load continuous operation. The piston rod undergoes induction hardening and hard‑chrome plating for strong abrasion resistance. Imported high‑pressure polyurethane seals maintain stable function from ‑20℃ to +85℃, with leak‑proof and fatigue cycle tests completed before factory release.
| Engineering Attribute | Verified Data |
|---|---|
| Component Type | Komatsu PC250‑6L Series Hydraulic Arm Cylinder |
| OEM Equivalent Part No. | 206‑63‑02521 |
| Core Material | High‑Strength Seamless Steel |
| Piston‑Rod Treatment | Induction Hardening + Hard Chrome Plating |
| Sealing | Imported High‑Pressure Polyurethane Seals |
| Operating Temperature | ‑20℃ ~ +85℃ |
| Factory Inspection | Leak Test, Fatigue Test, Dimensional Precision Check |
Our aftermarket arm cylinder matches OEM‑grade working performance at a more cost‑effective price than genuine Komatsu parts. With flexible 1‑piece MOQ, 12‑month warranty for non‑artificial quality failures, free replacement parts and fast Guangzhou‑warehouse delivery, it lowers maintenance expenditure and reduces machine downtime.
Established in 2013, Belparts focuses on mid‑size excavator hydraulic spare parts. We supply genuine and premium aftermarket components compatible with Komatsu,Hitachi, Doosan and Hyundai, exported to over 150 countries with complete cross‑border logistics support.
A: Share your machine serial number or old cylinder casting photos, our engineering team verifies full compatibility for direct installation.
A: It covers non‑human‑caused defects such as oil leakage, cylinder deformation and seal failure, with free replacement parts and remote technical guidance.
A: Optimized for PC250‑6L operating conditions, wear‑resistant materials and precise pressure matching extend service life under regular construction loads.
A: Anti‑corrosion oil treatment, airtight port sealing and export‑grade wooden case packaging. Air express takes 3‑7 days; sea freight 30‑45 days.
A: T/T, platform‑secured Trade Assurance and PayPal, protecting global buyers from cross‑border transaction risks.
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