Hitachi ZX670-3 hydraulic pump – Product Details
This new Hitachi ZX670-3 hydraulic pump (part number 4635645) is a replacement part for the Hitachi ZX670-3 excavator. The hydraulic pump is the main hydraulic pump that turns engine power into hydraulic flow and pressure for the boom, arm, bucket, swing and travel functions. It is made to match the original Hitachi part number 4635645 for a direct fit.
A worn main pump causes slow or weak digging, slow travel, overheating oil and noise from the pump. Fitting a new ZX670-3 hydraulic pump restores full performance on the Hitachi ZX670-3 excavator and helps avoid costly downtime on site. Always check the part number 4635645 against your machine’s parts book or the old part before ordering.
Technical Specifications
| Specification | Details |
|---|---|
| Part name | Hydraulic Pump Assembly |
| Part number | 4635645 |
| Brand / make | For Hitachi machines |
| Compatible models | Hitachi ZX670-3 |
| Machine type | Excavator |
| Part group | Hydraulic Pump & Parts |
| 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 ZX670-3
- 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 hydraulic pump, send us an enquiry with the part number 4635645, 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 ZX670-3 hydraulic pump new or used?
It is a brand new replacement part.
Will it fit my machine?
It fits the Hitachi ZX670-3. 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.
