Rebuilding the Hitachi ZX300-3, ZX330-3, and ZX350-3 Main Control Valve

At Tonkee Machinery, we understand the critical role that a well-functioning hydraulic system plays in the performance of your heavy machinery. We are proud to announce our specialized service for rebuilding the "main control valve" for the popular Hitachi ZX300-3, ZX330-3, and ZX350-3 series excavators. This essential component, also known by part numbers "4625137" and "YA00000734", is the heart of the hydraulic system, precisely controlling the flow and pressure of fluid to all the machine's functions. A worn or failing main control valve can lead to sluggish movements, loss of power, and unpredictable operation, significantly impacting your productivity and safety.

Our rebuilding process is not a simple repair; it is a comprehensive restoration to original factory specifications. We meticulously disassemble each valve, inspect every spool, spring, and seal for wear and damage, and replace all necessary components with high-quality, durable parts. Our skilled technicians use advanced diagnostic tools to identify even the most subtle issues, ensuring that the rebuilt valve operates with the same precision and responsiveness as a brand-new unit. This meticulous attention to detail ensures not only the reliability of the valve but also extends the operational life of your excavator.

Choosing to rebuild with Tonkee Machinery offers a cost-effective and environmentally friendly alternative to purchasing a new valve. It reduces waste and provides a more sustainable solution for maintaining your fleet. Our rebuilt main control valves undergo rigorous testing to guarantee they meet or exceed OEM standards, giving you peace of mind and confidence in your equipment's performance. By choosing our service, you're not just getting a repaired part; you're getting a fully restored, high-performance component backed by our expertise and commitment to quality.

Key Product Information

For your convenience, we have compiled the essential information regarding the main control valve for the Hitachi ZX-3 series excavators.

We are dedicated to supporting your operational needs with reliable, high-quality, and affordable solutions. Our rebuilt main control valves are a testament to our commitment to excellence and customer satisfaction.