SK115DZ IV Hydraulic Bucket Cylinder for Kobelco Excavator Spare Parts 2438U738F2 Aftermarket High Quality
Kobelco excavator hydraulic bucket cylinder
,SK115DZ IV hydraulic cylinder
,aftermarket excavator spare parts cylinder
Kobelco SK115DZ IV Bucket Hydraulic Cylinder | PN:2438U738F2 | Premium Aftermarket Replacement
1. Basic Product Info
High-quality aftermarket bucket hydraulic cylinder exclusively for Kobelco SK115DZ IV mid-size crawler excavator, OEM part number 2438U738F2, direct OEM replacement for original factory cylinder, controls bucket opening/closing for earthmoving, landscaping, municipal construction and rock loading jobs. Full compliance with original drawing dimension, pin spacing and oil port layout for direct bolt-on installation without machining modifiion.
| Item | Specifiion |
|---|---|
| Product Name | Hydraulic Bucket Cylinder |
| Fit Model | Kobelco SK115DZ IV |
| OEM Part No. | 2438U738F2 |
| Grade | Brand New Premium Aftermarket |
| Warranty | 12 months against manufacturing defects |
| MOQ | 1pc available from stock |
| QC Standard | ISO9001 certified, full hydraulic pressure testing |
2. Core Technical Parameters

| Spec Item | Data |
|---|---|
| Bore Diameter | 100mm |
| Piston Rod Diameter | 65mm |
| Rated Working Pressure | 34.3MPa |
| Factory Test Pressure | 51.45MPa(1.5*rated pressure) |
| Barrel Material | ST52 seamless alloy steel, precision inner honing finish |
| Piston Rod | 40Cr quenched & tempered steel, 28~32μm hard chrome plating, HRC67~70 anti-wear & anti-bending |
| Seal Set | Imported PU+NBR composite high-pressure oil seals, matched repair seal kit PN:2438U738R200 |
| Working Temperature | -25℃~+85℃ |
| Mount Type | Double ear lug with wear-resistant copper bushings |
3. Product Advantages
- 100% OEM Interchangeability: Same installation size as original 2438U738F2, perfectly matches original bucket linkage and hydraulic pipeline of SK115DZ IV.
- Strengthened Lug Design: Thickened ear root avoids crack under frequent heavy-load digging & rock impact, adapted to rugged construction site.
- Strict Pre-shipment Inspection: Every cylinder completes full-stroke reciproing test & tightness test to eliminate inner/outer oil leakage before delivery.
- Cost-Effective Alternative: Equivalent working performance as genuine Kobelco spare parts while saving 42%~50% purchasing cost for repair dealers.
- Flexible Logistics: In-stock goods ship within 3 working days; air shipment 3~7 days for urgent order, sea cargo 30~38 days for bulk purchase.
4. Supplier Info
Our factory focuses on Kobelco SK series hydraulic cylinders over 12 years, complete boom/arm/bucket cylinder lineup for SK60, SK100, SK115DZ, SK120, SK130 series, products mainly exported to Africa, Southeast Asia and Middle East aftermarket market.
5. FAQ
Q1: Can it fit SK115SRDZ model?
A: No, SK115SRDZ uses different part number YX01V00005F1 and different cylinder dimension, not interchangeable.
Q2: Does cylinder come with seal kit?
A: Standard package without seal kit; matched repair seal kit PN:2438U738R200 can be purchased separately with bundle discount.
Q3: Anti-rust packing for ocean transit?
A: Inner barrel filled anti-rust oil, piston rod coated anti-rust grease, wrapped waterproof PE film + export plywood case.
Q4: Discount for full set boom+arm+bucket cylinder order?
A: Combined full-set purchase gets tiered unit discount and consolidated one-time freight to cut total logistics cost.
Q5: Warranty for abnormal oil leakage?
A: Provide leakage photos + excavator serial number, we offer free replacement seal kit or remote installation guidance within warranty period.
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