
Product Overview
This is a genuine OEM hydraulic main pump housing designed for Hitachi excavators. As a leading global supplier of heavy machinery parts, we provide direct shipping to major industrial markets worldwide, including North America, Europe, the Middle East, and Asia-Pacific. This critical component ensures the reliable operation of your excavator’s primary hydraulic system.
Key Features & Benefits
- Genuine OEM Quality: Manufactured to original Hitachi specifications for perfect fit, performance, and longevity.
- Superior Durability: Constructed from high-grade materials to withstand extreme pressures and operational stresses within the hydraulic pump assembly.
- Precision Engineering: Ensures optimal alignment and sealing for efficient hydraulic fluid transfer, maintaining pump efficiency and preventing internal leaks.
- Direct Replacement: Designed as an exact match for the original part, guaranteeing seamless installation and restoring factory-level performance.
- Reliability: Replaces worn or damaged housings to prevent catastrophic pump failure, minimizing costly downtime on your job site.
Technical Specifications
| Specification | Detail |
|---|---|
| Primary Part Number | YB00001775 |
| Alternative Part Number | 1028405 |
| Component Type | Hydraulic Main Pump Housing / Gear Case |
| Compatibility Brand | Hitachi |
| Material | High-Strength Cast Alloy (Precision Machined) |
| Condition | New Genuine |
OEM Cross-Reference
This genuine part corresponds directly to the following OEM numbers:
- Hitachi: YB00001775
- Hitachi: 1028405
It is the authentic housing component for the specified hydraulic main pump assemblies.
Compatibility
This hydraulic pump housing is compatible with the following Hitachi excavator models:
- Hitachi ZX330-1
- Hitachi ZX360
- Hitachi ZX330-5G
Please verify your machine’s model and serial number, as well as the existing pump assembly part number, to ensure correct application.
Global Supply & Distribution
We specialize in the international export of genuine and premium aftermarket construction machinery parts. Our logistics network ensures efficient delivery to key global markets.
- Worldwide Shipping: We ship to all major continents, including North America (USA, Canada, Mexico), South America, Europe (EU & UK), Asia-Pacific, the Middle East, and Africa.
- Fast Delivery to Hubs: Expedited shipping options are available to major ports and industrial centers such as Rotterdam, Los Angeles, Singapore, Dubai, and Hamburg.
- Export Expertise: All documentation, including commercial invoices, packing lists, and certificates of origin, is prepared in full compliance with international trade regulations for smooth customs clearance.
- Bulk & Container Orders: We support both LCL (Less than Container Load) and FCL (Full Container Load) shipments for large-scale B2B procurement.
Quality Assurance
- OEM Standard: This is a genuine Hitachi part, guaranteeing it meets all original factory specifications for material, dimensions, and performance.
- Rigorous Inspection: Each part undergoes visual and dimensional checks to ensure it is free from defects and machining inaccuracies.
- Certified Supply Chain: Sourced directly from authorized channels to guarantee authenticity and traceability.
- Warranty: Backed by a standard warranty against manufacturing defects. Please contact us for specific warranty terms applicable to your region.
FAQ
Q1: How can I confirm this housing is compatible with my specific Hitachi ZX330 excavator?
A1: Compatibility is determined by the model (e.g., ZX330-1) and the part number of the hydraulic main pump assembly itself. We strongly recommend checking the part number stamped on your existing pump housing or consulting your equipment’s official parts manual before ordering. The primary compatible numbers are YB00001775 and 1028405.
Q2: Is this housing sold as a standalone unit, or does it include internal gears and components?
A2: This listing is for the genuine pump housing only. It does not include internal components such as gears, shafts, bearings, or seals. It is designed for repairs where the housing itself is cracked, worn, or damaged, but the internal rotating group is still serviceable.
Q3: What are the critical steps for installing this new pump housing?
A3: Installation should be performed by a qualified technician. Key steps include: thoroughly cleaning the work area, transferring all internal components and seals from the old housing with care, applying the correct sealant as specified by the manufacturer, torquing fasteners to the proper sequence and specification, and priming the hydraulic system before operation to prevent dry start damage.
Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.
2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.
3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.
4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.
5. Scientific ERP system, easy and fast to locate the parts that customer needs.
6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.
Exhibition

Packing&Shipping

1. Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).
2. Once we get confirmation of payment, we will ship products in 2 days.
3. Our packaging is standard export wooden box or others as your requirement.
4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ
Q1. What is your company major products?
A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.
Q2.What is the MOQ?
A: Normally we can supply any quantity if we have in stock.
Q3. What is your payment term ?
A: We accept Western Union, T/T, Paypal.
Q4. What is the packing ?
A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.
Q5. When can you deliver products after payment ?
A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .
Q6. What can you do to complete order perfectly ?
A: In the beginning , We will communicate with clients in details to understand what they need .
Before packing , We will check the products and send photos to clients .After confirmation ,
We will packing products well to avoid damage . Once we get tracking number ,
We will send it to customer and keep contact in with clients .