The YNF16872 (4366958) Main Control Valve Seal Kit is designed for Hitachi EX120-5 excavators, providing a complete sealing solution for the main control valve (MCV) / distributor valve. Manufactured using high-quality rubber and polymer materials, this kit ensures stable hydraulic distribution, leak-free operation, and dependable long-term performance in demanding working environments.

• Compatible with Hitachi EX120-5 excavators

• Direct replacement for OEM part number 4366958

• Includes a full set of O-rings, seals, backup rings, and gaskets for comprehensive MCV maintenance

• Made from premium NBR, PU, and PTFE materials resistant to hydraulic oil, heat, and high pressure

• Restores smooth, precise hydraulic flow and control valve function

• OEM-standard dimensions for accurate fitment and easy installation

• Suitable for preventive maintenance or complete valve overhaul

• Enhances hydraulic efficiency and reduces downtime caused by internal leakage

• Machine model: Hitachi EX120-5

• Component: Main Control Valve / Distributor Valve

• Ideal for earthmoving, construction, excavation, and material-handling applications

• Installation guidance and technical assistance

• Pre-shipment photos and size confirmation

• Long-term supply for distributors, workshops, and rebuild centers

• Custom control valve seal kits available upon request

• Each seal packed individually in protective bags

• Packed in export-standard cartons for safe delivery

• Neutral or YNF branded packaging available

• Supports mixed shipments of multiple parts

Q1: Can this kit fit other Hitachi models?
A: It is designed specifically for EX120-5. Please provide OEM part numbers or valve photos for compatibility checks.

Q2: How long is the service life?
A: Typically 12–24 months, depending on working conditions and maintenance quality.

Q3: Can I combine this order with other parts?
A: Yes, we support mixed shipments of any excavator parts.