R320LC-7 R320-7 Hydraulic Arm Cylinder for Hyundai Excavator Spare Parts 31Y1-19050 Aftermarket High Quality

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Hyundai R320LC-7 Arm Hydraulic Cylinder | PN:31Y1-19050 | Premium Aftermarket Replacement

1. Basic Product Info

High-quality aftermarket stick/arm hydraulic cylinder, OEM part number 31Y1-19050, direct replacement for Hyundai ROBEX R320LC-7 / R320-7 32-ton crawler excavator. Controls arm stretching & retraction for heavy earthmoving, rock excavation, quarry and heavy construction jobs. Produced per original Hyundai drawing with identical pin spacing, mounting dimension and oil port layout for direct bolt-on installation without modification.

2. Core Technical Specs

3. Product Advantages

1. 1:1 OEM Interchange: Fully matches original 31Y1-19050 size, perfect fit R320LC-7 arm linkage and original hydraulic pipeline.
2. Heavy-Duty Reinforced Structure: Thickened lug base & strengthened cylinder barrel, anti-impact from rock collision in mining sites, avoid ear cracking & rod bending.
3. Strict Pre-delivery Inspection: Every cylinder passes leak test & full-stroke reciprocating cycle test to eliminate inner/outer oil leakage risk.
4. Cost Saving Solution|Same performance as genuine Hyundai spare part, save 40%-50% purchase cost for repair shop & spare parts wholesaler.
5. Flexible Shipment: In-stock items ship within 3 working days; air delivery 3~7 days, sea freight 30~40 days for bulk order.

4. Supplier Brief

We focus on Hyundai R-7 series excavator hydraulic cylinders over 12 years, full boom/arm/bucket cylinder range for R140LC-7, R320LC-7, R330LC-7, R370LC-7, products widely exported to Africa, Southeast Asia, Middle East construction spare parts market.

5. FAQ