Description
Product Overview
The 9218031 Pilot Gear Pump (Double Gear Pump) is a high-quality hydraulic component designed for Hitachi ZAX110-3, ZAX120-3, ZAX135USR-3, and ZAX130-5G excavators.
As an important component of the hydraulic pilot control system, this gear pump provides stable pilot hydraulic pressure to ensure smooth valve operation, accurate control response, and efficient excavator performance.
This model features a double pump structure with 14.6 + 14.6 flow capacity, providing reliable hydraulic output for demanding construction machinery applications.
Hongtengda specializes in supplying excavator hydraulic parts, engine components, electrical parts, and construction machinery replacement solutions for global repair shops, distributors, and equipment service providers.
1. Key Features & Advantages
● Wide Compatibility with Hitachi Excavators
The 9218031 hydraulic gear pump is compatible with:
- Hitachi ZAX110-3
- Hitachi ZAX120-3
- Hitachi ZAX135USR-3
- Hitachi ZAX130-5G
Providing accurate matching and reliable installation.
● Double Gear Pump Design
This pump features a dual pump structure with:
- Flow rate: 14.6 + 14.6
The double pump design improves hydraulic system efficiency and provides stable pressure supply for pilot control functions.
● Stable Hydraulic Control Performance
The pilot gear pump ensures:
- Smooth hydraulic valve operation
- Fast control response
- Stable pilot pressure
- Reliable excavator operation
Helping operators achieve better machine control during construction work.
● Durable Hydraulic Performance
Manufactured for heavy equipment applications with advantages including:
- High wear resistance
- Stable oil flow output
- Reliable sealing performance
- Long service life
Suitable for construction, excavation, and industrial applications.
● Original Quality Replacement
The product is supplied as an original quality part, offering excellent compatibility with Hitachi hydraulic systems and reducing installation problems.
● Professional Inspection Before Shipment
Before shipment, Hongtengda provides:
✓ Product condition inspection
✓ Part number verification
✓ Detailed product photos
✓ Buyer confirmation before delivery
Ensuring customers receive the correct hydraulic component.
2. Technical Specifications
| Item | Specification |
|---|---|
| Product Name | Pilot Gear Pump / Double Gear Pump |
| Part Number | 9218031 |
| Applicable Models | Hitachi ZAX110-3 / ZAX120-3 / ZAX135USR-3 / ZAX130-5G |
| Product Type | Hydraulic Gear Pump |
| Pump Structure | Double Gear Pump |
| Flow Rate | 14.6 + 14.6 |
| Product Category | Hydraulic System Parts |
| Brand Name | HTD |
| Place of Origin | Japan |
| Condition | Original Quality Part |
| MOQ | 1 Piece |
| Supply Capacity | 300 Pieces / Month |
| Warranty Period | 3-6 Months (According to Product Details) |
| Packaging Details | Wooden Case Packaging or Customized |
| Payment Methods | L/C, T/T, XTransfer, PayPal, Western Union |
| Delivery Time | 5-8 Working Days (Depending on Order Status) |
| Shipping Methods | Sea Freight / Air Freight / DHL / FedEx / TNT / EMS |
| Quality Assurance | Product Inspection + Detailed Photos Confirmation |
3. Application Fields
The Hitachi 9218031 Double Gear Pump is widely used in:
Excavator Hydraulic System Maintenance
Suitable for:
- Hydraulic pilot system repair
- Excavator maintenance
- Hydraulic component replacement
- Construction machinery servicing
Construction Industry
Applied in:
- Building construction
- Infrastructure projects
- Earthmoving operations
- Excavation applications
Mining & Heavy Equipment
Suitable for:
- Mining equipment maintenance
- Quarry operations
- Heavy-duty excavation environments
Machinery Repair & Distribution
Common customers include:
- Excavator repair workshops
- Hydraulic service companies
- Construction machinery dealers
- Spare parts wholesalers
4. Why Choose Hongtengda?
Professional Excavator Parts Supplier
Guangzhou Hongtengda Engineering Machinery Co., Ltd. is a professional construction machinery parts supplier with more than 25 years of industry experience.
We provide reliable solutions for global customers, including:
- Hydraulic pumps
- Hydraulic cylinder components
- Gear pumps
- Engine parts
- Electrical components
- Excavator replacement parts
Accurate Parts Matching Service
To help customers purchase the correct parts, we provide:
✓ Machine model verification
✓ Part number confirmation
✓ Product specification checking
✓ Detailed photos before shipment
Reducing ordering errors and improving maintenance efficiency.
Global Export Capability
Hongtengda supports:
- Individual replacement orders
- Wholesale purchasing
- Distributor cooperation
- Long-term supply partnerships
Transportation options:
- Sea freight
- Air freight
- DHL
- FedEx
- TNT
- EMS
5. Product Quality Assurance
Before shipment, every hydraulic gear pump is inspected carefully.
Quality inspection includes:
- Product appearance check
- Part number verification
- Pump condition inspection
- Packaging safety confirmation
Detailed product pictures are provided before shipment for customer verification.










