원래 장소:
중국
브랜드 이름:
Belparts
인증:
CE
모델 번호:
SK300LC IV SK300 IV
| Hydraulic Parts | Hydraulic Pump | Final Drive | Travel Reduction |
| Swing Motor | Swing Reduction | Control Valve | Gear Parts |
| Slew Bearing | Engine Assembly | Hydraulic Cylinder | ECU |
High-quality aftermarket LEFT HAND boom cylinder exclusively for Kobelco SK300LC-IV, SK300-IV crawler excavator, dual interchange OEM part numbers: 2438U1177F2,2438U1177F4, direct OEM replacement for original factory boom cylinder, controls boom lifting/lowering for heavy quarry mining, rock loading, large earthmoving and highway construction projects. Fully matched original dimension, pin pitch, oil port layout for plug-and-play installation without field machining modification.
| Item | Details |
|---|---|
| Product Name | Hydraulic Boom Cylinder (Left Side) |
| Fit Model | Kobelco SK300-IV, SK300LC-IV; also compatible with partial SK330LC-IV LH boom |
| OEM Part No. | 2438U1177F2, 2438U1177F4 |
| Quality Grade | Brand New High Standard Aftermarket |
| Warranty | 12 months against factory defects |
| MOQ | 1 unit in ready stock |
| QC Standard | ISO9001 certified, full hydraulic pressure inspection before shipment |
| Spec Item | Parameter |
|---|---|
| Bore Inner Dia | 150mm |
| Piston Rod Dia | 100mm |
| Rated Working Pressure | 34.3MPa |
| Factory Test Pressure | 51.45MPa (1.5×working pressure) |
| Barrel Tube | ST52 seamless alloy steel, precision deep inner honing |
| Piston Rod | 40Cr quenched & tempered steel, hard chrome coating 28~32μm, surface hardness HRC67-70 anti-bending & abrasion-resistant |
| Complete Seal Kit PN | 2438U1170R100 (optional separate purchase) |
| Operating Temp | -25℃ ~ +85℃ |
| Mount Structure | Double ear with wear-resistant copper bushing, piston rod side built-in buffer structure |
Our factory specializes in Kobelco SK series hydraulic cylinders over 12 years, complete boom/arm/bucket cylinder range covering SK200, SK250, SK300, SK330, SK350 IV series, products mainly exported to Africa, Southeast Asia, Middle East aftermarket spare parts market.
Q1: Can this LH cylinder replace right-hand boom cylinder (PN:2438U1170F series)?
A: No, RH boom uses separate part number 2438U1170F1/F2/F3/F4 with different oil port layout, cannot cross installation.
Q2: Does standard package include matching seal kit?
A: Standard cylinder without seal set; matched repair seal kit 2438U1170R100 available with bundle discount when ordered together.
Q3: Export anti-rust packaging for long ocean transport?
A: Inner cylinder filled anti-rust hydraulic oil, piston rod coated anti-rust grease, wrapped waterproof PE film + solid export plywood case.
Q4: Discount for full set boom+arm+bucket cylinder bulk purchase?
A: Full set combined order enjoys tiered unit discount plus consolidated single shipment to cut total logistics expense.
Q5: Warranty support for abnormal oil leakage?
A: Provide on-site leakage photos + excavator serial number, we supply free replacement seal kit or remote installation guidance within warranty period.
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