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SK300LC IV SK300 IV Hydraulic Arm Cylinder for Hyundai Excavator Spare Parts 2438U1171F4 Aftermarket High Quality
Hyundai excavator hydraulic arm cylinder
,SK300LC IV hydraulic cylinder
,aftermarket excavator spare parts cylinder
Note: Wrong brand marked Hyundai originally, it fits Kobelco SK300IV/SK300LC-IV/SK330LC-IV excavator
High-quality aftermarket stick hydraulic cylinder for Kobelco SK300-IV, SK300LC-IV, SK330LC-IV heavy excavator, interchange OEM part numbers: 2438U1171F2 / 2438U1171F4, direct replacement original arm cylinder to control stick extension & retraction for mining, rock digging, bulk earthmoving projects. Fully consistent with original dimension, pin pitch and oil port for direct bolt-on installation without modifiion.
| Item | Details |
|---|---|
| Product Name | Hydraulic Arm / Stick Cylinder |
| Fit Model | Kobelco SK300 IV, SK300LC IV, SK330LC IV |
| OEM PN | 2438U1171F4, 2438U1171F2 |
| Grade | New High-Grade Aftermarket |
| Warranty | 12 months for manufacturing defects |
| MOQ | 1pc in stock |
| QC Standard | ISO9001 certified, full pressure leakage test |
| Spec Item | Data |
|---|---|
| Bore Diameter | 170mm |
| Piston Rod Diameter | 120mm |
| Rated Working Pressure | 34.3MPa |
| Factory Test Pressure | 51.45MPa (1.5×nominal pressure) |
| Barrel | ST52 seamless steel, precision inner honing processing |
| Piston Rod | 40Cr quenched & tempered, 28~32μm hard chrome plating, HRC67~70 anti-abrasion |
| Matching Seal Kit PN | 2438U1171R200 / 2438U1171R300 |
| Working Temp | -25℃ ~ +85℃ |
| Structure | Double ear mounting with copper wear bushings, built-in end buffer device |
- Universal OEM interchange: Two part numbers cross-fit all production batches of SK300/SK330 IV series arm cylinder, compatible with original arm linkage and hydraulic pipeline.
- Heavy-duty reinforced design: Thickened lug root avoids crack under frequent heavy-load rock excavation, suitable for mine & harsh construction site.
- Strict pre-ship inspection: Full-stroke reciproing cycling + high-pressure tightness test to eliminate inner & outer oil leakage before delivery.
- Cost-saving option: Same performance as genuine Kobelco spare parts while cutting 42%~50% procurement cost for global repair shops & parts wholesalers.
- Flexible delivery: In-stock goods ship within 3 working days; air freight 3~7 days for urgent order, sea shipment 30~40 days for bulk purchase.
Factory specialized in Kobelco SK series hydraulic cylinders over 12 years, full boom/arm/bucket cylinder range covering SK200~SK350 IV series, products mainly exported to Africa, Southeast Asia, Middle East aftermarket market.
Q1: Can it fit SK300-III model?
A: Part number shares same dimension for partial SK300-III, confirm machine serial number before order.
Q2: Standard package includes seal kit?
A: Standard cylinder without seal set; matched repair kit PN2438U1171R200 available separately with bundle discount.
Q3: Export anti-rust packing?
A: Barrel filled anti-rust oil, piston rod coated anti-rust grease, wrapped PE film + solid export plywood case for long ocean transit.
Q4: Discount for full set boom+arm+bucket cylinder order?
A: Combined full-set purchase gets tiered discount plus consolidated shipment to save total freight cost.
Q5: After-sales for leakage within warranty?
A: Provide leakage photos + excavator serial number, free replacement seal kit or remote installation guidance offered.
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