Hitachi Genuine Shuttle Valve (Signal Valve) – 4718274

Description

1. Key Features & Benefits

• Genuine Hitachi OEM Component – Manufactured to Hitachi‘s original equipment specifications. This is a brand‑new, factory‑spec shuttle valve (also known as a signal valve) – not an aftermarket substitute. OEM parts ensure perfect fit, reliable performance, and long service life.

• Precision‑Engineered Hydraulic Control – The shuttle valve is a precision‑engineered hydraulic control component designed to optimize directional flow management in demanding excavation operations. It selects pilot pressure used to perform each operation and routes pilot pressure to the corresponding control valves and/or control spools. This enables precise, responsive machine operation.

• Critical Signal Valve Function – As a signal shuttle valve, it plays an essential role in the machine‘s hydraulic control system. It ensures that pilot pressure signals are correctly routed to activate the main control valve spools for functions including boom raise/lower, arm roll‑in/out, bucket roll‑in/out, swing (left/right), and travel (left/right).

• Robust, Corrosion‑Resistant Alloy Construction – Featuring a robust, corrosion‑resistant alloy construction with hardened sealing surfaces, this shuttle valve ensures reliable pressure balancing and seamless fluid diversion between hydraulic circuits, even under extreme load cycles or temperature fluctuations.

• Innovative Poppet‑Style Design – The valve‘s innovative poppet-style design minimizes pressure drops and eliminates cross-port leakage, delivering instantaneous response times for smooth boom, arm, and bucket movements.

• Compact, Modular Architecture – The valve‘s compact, modular architecture integrates seamlessly into Hitachi excavator hydraulic systems, reducing energy loss while maintaining consistent pilot pressure for operator‑controlled precision.

• Advanced Anti‑Cavitation Grooves and Self‑Cleaning Ports – These features extend service life by mitigating wear from particulate contamination, making the valve ideal for harsh job sites.

• Tested to ISO 4401 Standards – The 4718274 excels in synchronized multi‑function operations, ensuring fatigue‑resistant performance that aligns with Hitachi‘s legacy of durability and operational excellence.

• Wide Compatibility Across Hitachi Zaxis Series – Compatible with a broad range of Hitachi excavator models including ZX200‑5, ZX240‑5, ZX330‑5G, ZX330, ZX470, ZX870, as well as ZX160LC‑3, ZX200‑3, ZX200‑5G, ZX210K‑3, ZX225US‑3, ZX240‑5G, ZX120‑6, ZX130‑5A, ZX260LCH‑5A, ZX280LC‑5G, ZX300‑5A, ZX350H‑3, ZX400LCH‑5A, and many others.

• Pre‑Shipment Visual Verification – Before packing, we send you detailed high‑resolution photographs of the actual unit (part number markings, sealing surfaces, overall condition). You approve shipment – we never ship blind. Video inspection is also available upon request.

• Fast Delivery – 1–3 working days lead time from our Guangzhou warehouse. Flexible shipping options including DHL, TNT, UPS, FedEx, and sea freight.

2. Technical Specifications

3. Applications

The Hitachi shuttle valve (4718274) is a critical hydraulic control component for Zaxis series excavators used across a wide range of demanding job sites:

• Large‑Scale Mining & Quarrying – In open‑pit mines and aggregate quarries, excavators work 20+ hour shifts under extreme loads. The shuttle valve ensures reliable pressure balancing and seamless fluid diversion between hydraulic circuits, maintaining consistent machine performance even under extreme load cycles. Its robust, corrosion‑resistant alloy construction withstands the harsh, dusty conditions of mining environments.

• Heavy Construction & Earthmoving – Highway excavation, dam building, bridge footings, and large‑scale earthmoving projects demand precise, responsive hydraulic control. The shuttle valve routes pilot pressure signals to activate the main control valve spools for boom, arm, bucket, swing, and travel functions, enabling smooth, coordinated machine movements – from delicate grading to heavy bucket loads.

• Demolition & Scrap Processing – Shock loads, vibration, and rapid load changes are routine in demolition yards and metal recycling facilities. The shuttle valve‘s hardened sealing surfaces and precision‑engineered internal components ensure reliable performance under these extreme conditions.

• Urban Construction & Utilities – Sidewalk repairs, trenching, and small‑scale demolition in tight urban spaces require precise machine control. The shuttle valve ensures that hydraulic signals are accurately routed, providing the “fine‑touch” response needed for working near existing structures.

• Equipment Rental Fleet – 20–87 ton excavators are high‑value rental assets. A genuine new shuttle valve provides predictable performance and eliminates the risk of hydraulic control failure – avoiding costly mid‑rental breakdowns and customer complaints.

4. FAQ – Frequently Asked Questions

Q1: Is this shuttle valve an exact replacement for my Hitachi excavator?

A: Yes. The 4718274 is a genuine Hitachi shuttle valve compatible with ZX200‑5, ZX240‑5, ZX330‑5G, ZX330, ZX470, ZX870, and many other Zaxis series excavators. To confirm compatibility for your specific machine, send us your machine serial number and a photo of the old valve – we will verify within 2 hours.

Q2: What is the difference between a shuttle valve and a signal valve?

A: These terms are often used interchangeably for this component. The shuttle valve (also called a signal valve) selects pilot pressure used to perform each operation and routes pilot pressure to the corresponding control valves and/or control spools. It ensures that the machine responds accurately to operator joystick inputs.

Q3: Is this a new valve or a remanufactured unit?

A: It is brand new / genuine original, not remanufactured. All internal components are new. The valve is manufactured to Hitachi‘s original specifications and meets all OEM performance standards.

Q4: What are the physical specifications of this valve?

A: The valve packaging dimensions are approximately 40 × 35 × 25 cm and it weighs approximately 18 kg. It is constructed from a robust, corrosion‑resistant alloy with hardened sealing surfaces.

Q5: What is the warranty on this valve?

A: The warranty period is 3 months. Please refer to the product details for full warranty terms. For customers who require extended warranty coverage, we can quote aftermarket alternatives – ask our sales team.

Q6: How long does delivery take?

A: Delivery is 1–3 working days after order confirmation from our Guangzhou warehouse. Flexible shipping options including DHL, TNT, UPS, FedEx, and sea freight are available.

Q7: What payment methods do you accept?

A: We accept T/T (wire transfer), Western Union, and PayPal.

Q8: How can I verify the valve is genuine before shipping?

A: Before packing, we send you clear, high‑resolution photographs of the actual unit – part number markings, sealing surfaces, and overall condition. You approve shipment only after reviewing these images. We never ship blind. Video inspection is also available upon request.

Critical installation tip for the shuttle valve:
– Ensure hydraulic system cleanliness – before installing the new valve, flush the hydraulic system and replace filters if contamination is suspected. Debris in the hydraulic fluid can damage the precision‑machined internal components.
– Use new O‑rings and sealing washers on every hydraulic connection. Reused seals can cause leaks and pressure loss.
– Torque to specification – do not overtighten, as this can damage the valve body or sealing surfaces.
– Bleed air from the system – after installation, run the engine at low idle and slowly cycle each hydraulic function to purge air from the circuit.
– Test all functions – after installation, verify that all hydraulic functions operate smoothly and responsively.

Warranty note: The warranty period is 3 months. Please refer to the product details for full warranty terms. Our value is delivered up front: genuine Hitachi components, new‑condition valve, and pre‑shipment visual verification. For customers who require extended warranty coverage, we can quote aftermarket alternatives – ask our sales team.

The shuttle valve is the hydraulic signal router of your Hitachi Zaxis excavator. When it fails, your machine loses precise hydraulic control and responsiveness. A genuine new shuttle valve from Hongtengda Parts restores full hydraulic signal routing and machine performance – not with unknown or reconditioned components, but with factory‑fresh Japanese engineering. Send us your machine serial number – we will confirm compatibility and provide a quote within 24 hours.