9226367 Push Nut Pusher Assembly Hitachi Control Valve Parts ZX Hydraulic Excavator Valve Hydraulic Excavator Parts

Technical specifications

Fits this Hitachi machine

It is used on the Hitachi ZX excavator. Send us the machine serial and the number plate or photos of the old unit and we will confirm the part before dispatch. Browse our Hitachi parts and control valve parts range.

Why fit this push nut pusher assembly

• Lapped sealing surfaces - so the spool holds pressure without internal bypass.
• Correct spool geometry - meters flow the way the original does, no jerk or drift.
• Drops straight in - same bore, same ports, same control arrangement.
• Inspected before packing - bore and sealing faces checked, movement verified.

Signs this push nut pusher assembly needs replacing

• One function slow or dead - while the others work normally.
• Drift or creep - with the lever in neutral.
• Jerking or chatter - when the function is operated.
• Overheating - or low pressure on the affected circuit.

If your ZX shows any of these signs, replacing the part is the fastest way back to full production.

Installation notes

• Clean the area before opening the valve block, one grain of grit scores a spool.
• Check the pilot pressure and relief setting before replacing the valve.
• Lubricate the spool with clean oil and check it moves freely by hand.
• Test each function at low load, then check for external leaks.

Q: Which machines does this push nut pusher assembly fit?

A: Hitachi ZX. Send your machine serial number and a photo of the old part so we can cross-check before ordering.

Q: What does this part do?

A: It directs pump flow to the cylinder or motor that the operator commands, and sets the pressure in that circuit.

Q: How do I know it needs replacing?

A: Watch for one function slow or dead, drift or creep and jerking or chatter. Any of these on a working machine usually means the part is at the end of its life.

Q: Is this an original Hitachi part?

A: This is an OTTO aftermarket part built to replace Hitachi 9226367. It is not a Hitachi branded part. We also quote genuine parts on request.

Q: What are the lead time, shipping and payment terms?

A: In-stock units ship within 1-3 working days. We ship worldwide by DHL, TNT, UPS, air or sea freight with export packing. Trade terms: EXW, FOB, CIF or DDP; payment by T/T, Western Union, L/C or Paypal.

Q: Why choose OTTO?

A: Listed manufacturer and exporter with 20+ years in excavator parts.
OEM quality at competitive prices; components tested before shipment.
Stable supply and export packing for wholesale and dealer programs.
Worldwide shipping with full documents and after-sales support.