9218005 for EX120-5 excavator hydraulic gear pump pilot pump
The 9218005 pilot pump is a gear-type oil pump used in the hydraulic systems of construction machinery. It primarily provides pilot pressure oil flow to the main hydraulic system, ensuring sensitive and reliable operation of the hydraulic control circuit. This pilot pump features a compact structure, high gear meshing transmission efficiency, and can operate stably for extended periods under high temperature and high vibration conditions. It is widely applicable to the hydraulic drive systems of construction machinery such as excavators to improve overall operational response speed and equipment performance. According to market replacement data, this model is primarily used in the hydraulic systems of Hitachi EX series excavators.
It features a compact structure, stable output, and a continuous and reliable supply of pilot pressure oil, adapting to the high temperature and high vibration conditions of construction machinery to ensure sensitive hydraulic system response.
| Part Number |
9218005 |
| Type |
Gear Pump |
| Function |
Provides hydraulic control pilot oil pressure |
| Structure |
Gear-type oil pump |
| Applicable Systems |
Hydraulic control systems for construction machinery |
| Material |
High-strength steel or castings + precision-machined parts |
Suitable for Hitachi excavators
EX100-3, EX100-3C, EX100-3m, EX100-5, EX100-5E, EX100-5JPN, EX100M-3, EX100M-3m, EX100M-5, EX110-5, EX 110M-5, EX120-3, EX120-3C, EX120-3m, EX120-5, EX120-5HG, EX120-5JPN, EX120-5LVJPN, EX120-5X, EX120 -5Z, EX120SS-5, EX130H-5, EX130H-5JPN, EX130K-5, EX135UR, EX135UR-5, EX135US-5, EX135USR, EX135USRK EX140US-5, EX200-3, EX200-3C, EX200-3m, EX200-5, EX200-5HG, EX200-5JPN, EX200-5LVJAP, EX200-5XJPN, EX200-5ZJPN, EX200H-3, EX200K-3, EX200K-3m, EX200LC-3, EX200LC-5, EX200LCH-3, EX200SS-5, EX210H-5, EX210H-5JPN, EX210K-5JPN, EX210LCH-5, EX220-3, EX220-5, EX220-5HHE, EX220-5JPN, EX220LC-3, EX220LC-5, EX225USR(LC), EX225USRK(LC), EX230-5, EX230H-5, EX230H-5JPN, EX230K-5, EX230LC-5, EX230LC- 5HHE, EX230LCH-5, EX270-5, EX270LC-5, EX280H-5, EX280LCH-5, EX400-3, EX400-3C, EX400-5, EX400H-3, EX400LC-3, EX400LC-3C, EX400LC-5, EX400LCH-3, EX450H-3C, EX 450H-5, EX450LC-5, EX450LCH-3C, EX450LCH-5, EX750-5, EX800H-5, HU230-A, IZX200 IZX200LC, MA145-5, RX2300
Replacement Part Numbers
4276918, 9218005
Guangzhou Minshun Machinery Equipment Co., Ltd.
We specialize in the sales and service of diesel engine assemblies and construction machinery parts. Our product line covers engine assemblies, filtration systems, electronic control components, hardware accessories, wiring harnesses, and electrical accessories. Our service area includes Canada, the United States, the United Kingdom, Mexico, the Netherlands, Kazakhstan, Mongolia, Russia, Australia, Malaysia, Turkey, Indonesia, Singapore, Thailand, South America, South Africa, and other countries and regions.
Our Product Range
| Engine Rebuild Kit |
Turbochargers |
Engine Diesel Pumps |
Engine Controllers (ECU) |
| Cylinder Blocks |
Cylinder Heads |
Water Pumps |
Injectors |
| Starter Motors |
Filters |
Other Engine Accessories |
Excavator Hydraulic Pumps |
| Swivel Components |
Distributor Valves |
Travel Motor Assemblies |
Chassis Components and Other Accessories |

More products
Please click on the corresponding image to access the page














Frequently Asked Questions
Q1: What is your main products?
A1: We are specialized in the excavator engine spare parts, for example Main cylinder block, cylinder head, crankshaft, Engine assembly, piston, cylinder liner, piston ring, camshaft, connecting rod, oil pump, water pump, valve series products, movement, etc. almost all parts of the entire engine.
Q2: Do you test all products before shipping?
A2: Yes, we conduct 100% testing before shipping.
Q3: Which engine models is this Pilot Pump compatible with?
A3: This product is designed for specific diesel engine models. If you can provide the engine model or original part number, we can confirm compatibility before shipping to avoid incompatibility issues.
Q4: Can you provide cross-reference information for OEM part numbers?
A4: Yes, we support original part interchange. Please provide the original part number, and we will verify the replacement part accordingly.
Q5: What should I do if there is a problem with the product?
A5: Our products undergo professional testing and are of very stable quality. If you do find any problems, please contact us. We have a professional after-sales team to help you solve the problem.
Why Choose Us?
• Over 20 years of experience specializing in construction machinery, engines, and parts – with stable experience supplying mainstream brands and models.
• Extensive experience in model matching enables us to provide customers with accurate parts selection, reducing procurement risks.
• A long-term, stable, and reliable supply system ensures reliable product sourcing and meets continuous procurement needs.
• For product information or quotations, our professional team will provide you with detailed answers immediately upon receiving your request.