Boom Hydraulic Cylinder Assembly For Kobelco SK130‑8 SK140‑8 Excavator Main Arm Cylinder
Heavy‑duty aftermarket boom cylinder assembly compatible with Kobelco SK130‑8 & SK140‑8 excavators, high‑pressure main arm hydraulic cylinder with complete oil seal kit for construction machinery repair and overhaul.
Key Features
- Exact OEM‑equivalent boom cylinder perfectly matched for Kobelco SK130‑8 and SK140‑8 excavators
- Precision honed seamless steel cylinder tube, thickened hard‑chrome plated piston rod, wear‑resistant, anti‑corrosion and anti‑impact
- Heavy‑duty high‑pressure structure, stable lifting power for earthmoving, road construction and heavy‑load digging
- Complete internal assembly: piston, piston rod, guide bushing, buffer ring, full oil seal repair kit pre‑installed
- Standard pin hole size, oil port position and mounting dimension, direct bolt‑on replacement without modification
- Built‑in buffer & dust‑proof design, adapts to muddy, dusty and rocky construction working conditions
- Strict high‑pressure leakage testing before shipment, stable performance and long service life
- Universal fit for SK‑8 series small‑medium excavator hydraulic system
| Item |
Specification |
| Product Name |
Boom Hydraulic Cylinder Assembly / Main Arm Cylinder |
| Matched Excavator |
Kobelco SK130‑8, SK140‑8 |
| Material |
High‑Strength Seamless Steel Tube, Hard Chrome‑Plated Piston Rod, NBR/FKM High‑Pressure Oil Seals |
| Included Parts |
Cylinder Tube, Piston Rod, Piston, Guide Bushing, Buffer Ring, Complete Seal Kit, End Cover |
| Function |
Provide hydraulic power for boom lifting, lowering and heavy‑load support |
| Application |
Kobelco Small‑Medium Excavator Hydraulic Working Device |
| Condition |
Brand New Aftermarket Replacement |
Related products
| Category |
Replaceable Part Numbers / Compatible Models |
| General OEM Series |
YB01V00028F1, YB01V00029F1 |
| Compatible Excavator Models |
SK130‑8, SK140‑8, SK135‑8 |
Fitment Application
Specially designed for Kobelco SK130‑8 and SK140‑8 small‑medium excavators, widely used in municipal engineering, road maintenance, landscaping, earthmoving and general construction machinery maintenance.





FAQ
A1: Kobelco SK130‑8, SK140‑8 and SK135‑8 excavators.
Q2: Does it include oil seals?
A2: Yes, full oil seal repair kit pre‑installed.
Q3: Is direct installation available?
A3: Yes, OEM standard size, plug‑and‑play replacement without modification.
Q4: What working scenarios is it suitable for?
A4: Municipal construction, road maintenance, landscaping and light‑medium earthmoving.
Q5: Is it durable for long‑time use?
A5: Yes, heavy‑duty high‑pressure structure with strict quality testing.