Hitachi ZX450 relief valve – Product Details
This new Hitachi ZX450 relief valve (part number 4613559) is a replacement part for the Hitachi ZX450 excavator. The relief valve is the main or port relief valve fitted in the main control valve, which limits system pressure and protects the hydraulics. It is made to match the original Hitachi part number 4613559 for a direct fit.
A faulty relief valve causes weak digging, low pressure, overheating and drifting. Fitting a new ZX450 relief valve restores full performance on the Hitachi ZX450 excavator and helps avoid costly downtime on site. Always check the part number 4613559 against your machine’s parts book or the old part before ordering.
Technical Specifications
| Specification | Details |
|---|---|
| Part name | Control Valve Relief Valve |
| Part number | 4613559 |
| Brand / make | For Hitachi machines |
| Compatible models | Hitachi ZX450 |
| Machine type | Excavator |
| Part group | Hydraulic Valves |
| Condition | New |
| Fitment | Direct replacement for the original part |
| Supply | UK office, shipped worldwide from the UK and China |
| Price | On request – ask for a quote |
Key Features
- Brand new part, made to the original equipment specification
- Fits the Hitachi ZX450
- Direct replacement – no modification needed
- Quality checked before dispatch
- Fast worldwide shipping from our UK office and China supply base
- Expert help to confirm the correct part number before you order
How to Order
To order this relief valve, send us an enquiry with the part number 4613559, your machine model and serial number, and the quantity you need. Our team will confirm fitment and send you a price and delivery time. You can use the enquiry form on this page, contact us or message us on WhatsApp.
SMAZ Agri International UK supplies new Hitachi excavator spare parts and Isuzu engine parts to customers worldwide. Browse more parts in our HiTech Spareparts category, including hydraulic pumps, swing motors, control valves, sensors, controllers and engine parts.
Frequently Asked Questions
Is this Hitachi ZX450 relief valve new or used?
It is a brand new replacement part.
Will it fit my machine?
It fits the Hitachi ZX450. Send us your machine serial number or the old part number and we will confirm fitment before you order.
Do you ship worldwide?
Yes. We ship from the UK and China to customers around the world. Ask for a quote with delivery to your country.
