Check Valve for Hitachi ZAXIS 200 | Also Fits 240, 370, EX 350
Product Specifications
| Brand | Compatible Model(s) | OEM Part Number | Part Type | Availability |
|---|---|---|---|---|
| Hitachi | ZAXIS 200 / 240 / 370 / EX 350 | 4678480 | CHECK VALVE ASSEMBLY / SPOOL CAP | ✓ In Stock |
Product Description
OEM Part Numbers: 4678480
| Machine Model | Type | Part Number |
|---|---|---|
| ZAXIS 200 | 4678480 | |
| 240 | 4678480 | |
| 370 | 4678480 | |
| EX 350 | Excavator | 4678480 |
Designed for the ZAXIS 200 / 240 / 370 / EX 350, the 4678480 check valve zaxis 200 / 240 / 370 / ex 350 manages hydraulic fluid direction and pressure to ensure safe, controlled operation of the machine's hydraulic circuit. A worn or faulty valve causes hydraulic drift, pressure loss, and unpredictable machine behaviour — creating safety risks during lifting, digging, and load-handling operations. Manufactured to OEM reference 4678480 for accurate fitment and immediate hydraulic performance on the ZAXIS 200 / 240 / 370 / EX 350.
Key Features:
- Backflow Prevention: Prevents hydraulic fluid reverse flow to maintain circuit integrity and directional control.
- OEM Specification: Manufactured to reference 4678480 for accurate fitment on the ZAXIS 200 / 240 / 370 / EX 350.
- Leak-Free Design: Precision-manufactured sealing surfaces prevent internal and external hydraulic leakage.
The 4678480 check valve zaxis 200 / 240 / 370 / ex 350 is a critical hydraulic control component for safe, stable machine operation on the ZAXIS 200 / 240 / 370 / EX 350.
What Does This Check Valve Assembly / Spool Cap Do?
A check valve allows hydraulic or fuel fluid to flow in one direction only, preventing reverse flow that would cause loss of circuit pressure or function drift. Spool caps seal the ends of hydraulic control valve spools and retain the centring springs that return the spool to neutral when the operator releases the control lever.
Possible Check Valve Assembly / Spool Cap Problem Symptoms
If your machine is showing any of the following, a faulty check valve assembly / spool cap may be the cause:
- Hydraulic function drifting or dropping slowly when the control lever is in the neutral position
- Loss of holding pressure in a boom, arm, or attachment circuit when controls are released
- Spool cap leaking hydraulic oil externally at the end of the control valve body
- Hydraulic function not returning to neutral — remaining active after the lever is released
Why Buy From GCO Products?
Gautam & Company has been supplying earthmoving machinery spare parts since 1999. Here is why contractors, fleet operators, and dealers across India trust us.
Over 27 years of experience in the earthmoving parts industry.
Our team helps you confirm the right part before you order.
Proper GST invoices on every order for your accounting needs.
Fast dispatch from Jalandhar to all states across India.
Volume pricing available for fleet owners, dealers and distributors.
Both genuine OEM and quality aftermarket options available.
How to Confirm Compatibility
To ensure this part is the correct fit for your machine, have the following ready when you contact us:
- 1Machine Model & Year
E.g. Komatsu PC200-8, CAT 320D, JCB JS205 — include the model suffix if known.
- 2Machine Serial Number
Found on the machine's chassis plate. Helps confirm the exact production variant.
- 3OEM Part Number
From your parts manual, the old part itself, or the machine's service documentation.
Not sure if this part fits your machine?
WhatsApp Us to Confirm Typically replies within a few hoursDisclaimer: This is an aftermarket replacement part supplied by GCO Products (Gautam & Company) and is not manufactured by, affiliated with, or endorsed by the original equipment manufacturer (OEM). All brand names, model numbers, and OEM part numbers referenced on this page are used solely for the purpose of identifying compatibility and describing the application of this part. All trademarks, registered marks, and brand identifiers remain the exclusive property of their respective owners. GCO Products claims no association with, sponsorship by, or endorsement by any OEM brand mentioned herein.
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