Hitachi HPV118HW-25A 9275341 9274600 hydraulic pump for Hitachi ZX210W-3 ZX220W-3 ZX250W-3 excavator
If you decide to buy equipment at a low price, make sure that you communicate with the real seller. Find out as much information about the owner of the equipment as possible. One way of cheating is to represent yourself as a real company. In case of suspicion, inform us about this for additional control, through the feedback form.
Before you decide to make a purchase, carefully review several sales offers to understand the average cost of your chosen equipment. If the price of the offer you like is much lower than similar offers, think about it. A significant price difference may indicate hidden defects or an attempt by the seller to commit fraudulent acts.
Do not buy products which price is too different from the average price for similar equipment.
Do not give consent to dubious pledges and prepaid goods. In case of doubt, do not be afraid to clarify details, ask for additional photographs and documents for equipment, check the authenticity of documents, ask questions.
The most common type of fraud. Unfair sellers may request a certain amount of advance payment to “book” your right to purchase equipment. Thus, fraudsters can collect a large amount and disappear, no longer get in touch.
- Transfer of prepayment to the card
- Do not make an advance payment without paperwork confirming the process of transferring money, if during the communication the seller is in doubt.
- Transfer to the “Trustee” account
- Such a request should be alarming, most likely you are communicating with a fraudster.
- Transfer to a company account with a similar name
- Be careful, fraudsters may disguise themselves as well-known companies, making minor changes to the name. Do not transfer funds if the company name is in doubt.
- Substitution of own details in the invoice of a real company
- Before making a transfer, make sure that the specified details are correct, and whether they relate to the specified company.
Seller's contacts
+86 199 246...
Show
+86 199 2461 6345
China
China
China
China
China
China
China
China
China
China
China
China
China
China
China
China
China
China
China
China
This pump assembly is the "Original Brand" replacement for the following Hitachi factory specifications:
Model Number: HPV118HW-25A
Hitachi OEM Part Numbers: 9275341, 9274600
Machine Fitment:
Hitachi ZX210W-3
Hitachi ZX220W-3
Hitachi ZX250W-3
Condition: Original Brand New (Genuine Hitachi/Nachi Architecture)
2. Technical Specifications
The "HW-25A" designation indicates specific regulator tuning and port configurations unique to the wheeled (W) series:
Type: Tandem Variable Displacement Axial Piston Pump.
Max Pressure: 34.3 MPa (343 bar) during heavy excavation; 36.3 MPa (363 bar) during power boost.
Control System: Integrated with LS (Load Sensing) and PC (Pressure Compensation) valves, calibrated specifically for the Isuzu 6-cylinder engine torque curve.
Hydraulic Efficiency: Features a "Swash Plate Angle Sensor" and advanced electromagnetic proportional valves to ensure precise flow sharing between the travel motor and the digging attachments.
3. Why Choose the Original Brand?
For the ZX210W-3/220W-3/250W-3, the original pump is critical for performance consistency:
Stable Travel Performance: Wheeled excavators must maintain straight tracking at high speeds. Original pumps ensure perfectly balanced flow between the left and right travel circuits, which aftermarket clones often fail to achieve.
Thermal Resilience: These machines often perform long-distance roading. Original metallurgy in the cylinder blocks and valve plates is designed to withstand the heat-soak that occurs during high-speed travel without losing volumetric efficiency.
Regulator Harmony: The 9275341 regulator is pre-set to factory specifications. This eliminates the "engine lugging" or stalling issues commonly seen when installing uncalibrated aftermarket pumps.
4. Professional Installation Protocol
To protect this high-value component and ensure a long service life, follow these mandatory steps:
Case Priming: MANDATORY. Before starting the engine, fill the pump housing with clean hydraulic oil through the highest case drain port. A "dry start" will destroy the internal piston shoes and swash plate surfaces instantly.
System Decontamination: If the previous pump failed mechanically (sending metal into the system), you must flush the hydraulic tank, clean the oil cooler, and flush the pilot lines.
Filtration & Oil: Always install a new suction strainer and high-pressure return filter. Use ISO VG46 anti-wear hydraulic oil.
Air Bleeding: After installation, run the engine at low idle for 10 minutes. Cycle all cylinders and the travel motor slowly to their limits to purge any trapped air.
5. Frequently Asked Questions (FAQ)
Are the 9275341 and 9274600 numbers interchangeable?
Yes, they are generally interchangeable. 9275341 is typically the most current engineering revision, offering improved seal durability over the older 9274600 version.
How do I verify that I am receiving an "Original Brand" unit?
Genuine units feature a factory-stamped data plate with the Hitachi/Nachi logo, specific serial numbers, and precise casting marks. Original pumps also arrive with high-quality protective shipping plugs in all ports.
What is the expected shipping time?
For urgent repairs, we offer global express shipping via DHL, FedEx, or UPS. Delivery typically takes 3 to 7 business days to most international locations.
Does this pump come with the regulators?
Yes, our Original Brand New pumps are sold as complete assemblies, including the pre-calibrated LS and PC regulators.