Arm cylinder seal kit YN01V00039R300 for Kobelco SK200-6 excavator. Complete dipper cylinder overhaul seal set to resolve hydraulic oil leakage. Made of high-grade PU, NBR and PTFE, high pressure and wear resistant. Exact OEM size for direct replacement.
✅ OEM Part Number: YN01V00039R300
✅ Machine Model: Kobelco SK200-6 Excavator
✅ Product Name: Arm / Dipper Cylinder Seal Repair Kit
✅ Material: PU + NBR + PTFE + Backup Rings
✅ Function: Fix hydraulic leakage, recover cylinder pressure
✅ Advantages: Anti-leakage, wear-resistant, high pressure resistant, easy installation