Critical Components for Optimal Performance

As a trusted supplier for Hitachi excavators, Tonkee specializes in manufacturing mission-critical hydraulic system parts, including:

• 4070459 RING – Main pump retention

• 4070460 SEAL – Axial piston sealing

• 0820443 SEAL – Swing motor oil containment

• 991728 RING – Valve block assembly

• 0978509 COVER – Pump housing protection

Model-Specific Compatibility

For UH261 Excavator Hydraulic Systems:

Key components like 4070477 FLANGE and 446751 RING are engineered specifically for UH pump assemblies, ensuring perfect fitment for:

• Main control valve pressure regulation

• Final drive lubrication systems

For ZAXIS27U-2 Pump Systems:

Components including 0978518 CASING and 488075 RING are designed for:

• High-pressure hydraulic circuits

• Travel motor protection

Why Choose Tonkee?

With 15+ years specializing in Hitachi hydraulic systems, we provide:

• 100% OEM-equivalent quality

• 8-hour technical response

• 40,000+ successful installations

• Custom solutions for specialized applications

Contact our hydraulic experts:
      +86 18620952726
      sales08@tonkeeparts.cn
   (WeChat/WhatsApp available)