| Product name | Excavator hydrailic pump |
| Place of Origin: | China(mainland) |
| Model: | EX100-2 EX100-3 |
| Part number: | 9121198 |
| Brand: | hitachi |
| Payment term: | T/T & trade assurance & Paypal |
| Delivery time: | Within 3 days after receiving the payment |
List of spare parts
| # | Part No | Part Name | Qty. | Price request |
| | 9121198 | PUMP; SINGLE | 1 | |
| | (9133005) | PUMP; SINGLE | 1 | |
| 01 | 1018997 | . CASING; GEAR | 1 | |
| 03 | 3063840 | . GEAR; PILOT | 1 | |
| 04 | 3055594 | . SHAFT; GEAR | 1 | |
| 05 | 958740 | . BRG.; BALL | 2 | |
| 06 | 962002 | . RING; RETAINING | 1 | |
| 07 | 991725 | . RING; RETAINING | 1 | |
| 10 | | . PUMP; UNIT | 1 | |
| 12 | M492564 | . SCREW; DRIVE | 2 | |
| 13 | 3069415 | . NAME-PLATE | 1 | |
| 14 | 3064810 | . GEAR; DRIVE | 1 | |
| 16 | 4274552 | . RING; RETAINING | 1 | |
| 20 | 4314092 | . O-RING | 1 | |
| 21 | M211645 | . BOLT | 4 | |
| 22 | A590916 | . WASHER; SPRING | 4 | |
| 25 | 4310055 | . SEAL; OIL | 1 | |
| 26 | 991725 | . RING; RETAINING | 1 | |
| 28 | 4276918 | . PUMP; GEAR | 1 | |
| 30 | M341028 | . BOLT; SOCKET | 2 | |
| 31 | 984054 | . WASHER; SPRING | 2 | |
| 32 | 4114402 | . WASHER | 2 | |
| 34 | 4317633 | . ADAPTER | 2 | |
| 36 | 4234782 | . PLUG | 1 | |
| 38 | 4242263 | . GAUGE; LEVEL | 1 | |
| 38 | 4340855 | . GAUGE; LEVEL | 1 | |
| 39 | 9736788 | . PIPE | 1 | |
| 40 | 4243160 | . PACKING | 1 | |
| 41 | M340816 | . BOLT; SOCKET | 2 | |
| 42 | 9134111 | . PLUG | 1 | |
| 42A | 4509180 | .. O-RING | 1 | |
| 45 | 4265372 | . SENSOR; REVOL. | 1 | |
| 46 | 4306888 | . O-RING | 1 | |
| 47 | A590106 | . WASHER; PLANE | 1 | |
| 48 | M340616 | . BOLT; SOCKET | 1 | |
| 49 | 4252767 | . BRACKET | 1 | |
| 50 | M340613 | . BOLT; SOCKET | 1 | |
| 51 | 4169516 | . WASHER; SPRING | 1 | |
| 52 | 9134110 | . PLUG | 1 | |
| 52A | 957366 | .. O-RING | 1 | |
| 53 | 4278547 | . ADAPTER | 1 | |
| 53A | 4506418 | .. O-RING | 1 | |
| 55 | 4179837 | . FITTING; PIPE | 2 | |
| 55A | 957366 | .. O-RING | 1 | |
| 56 | 3064811 | . PIPE | 1 | |
| 57 | 9736515 | . CLAMP | 2 | |
| 58 | J900830 | . BOLT | 1 | |
| 59 | A590908 | . WASHER; SPRING | 1 | |
| 64 | 4310056 | . COUPLING | 1 | |
| 64A | 4340960 | .. HUB ASSY | 1 | |
| 64B | 4334899 | .. SCREW; SET | 2 | |
| 64C | 4101345 | .. PIN; SPRING | 4 | |
| 64D | 4334892 | .. INSERT | 4 | |
| 64E | 4334894 | .. BOLT; SOCKET | 4 | |
| 64F | 4334891 | .. COUPLING | 1 | |
Technical Features
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High torque density design - compact size with large output torque
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Integrated multi-disc brake - reliable and smooth braking
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Axial piston structure - high efficiency and long service life
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Excellent speed regulation performance - enables stepless speed control
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Built-in relief valve and replenishing valve - protects system safety
Performance Parameters
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Working pressure: Typically 25-35MPa
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Displacement range: 50-500cc/rev
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Output torque: 1000-20000Nm
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Rotation speed: 0-12rpm
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Braking torque: 1.5-2 times rated torque
Application and Maintenance
Widely used in various hydraulic excavators, cranes and other construction machinery. Daily maintenance requires attention to:
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Regularly check oil cleanliness
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Monitor working temperature
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Replace seals in time
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Change hydraulic oil filter elements periodically
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Applications
Excavator undercarriages are used in various industries:
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Construction: Earthmoving, trenching, foundation work.
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Mining: Heavy-duty material handling in quarries.
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Forestry: Logging and land clearing.
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Demolition: Building dismantling in confined spaces.
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Support and Services:
Our Excavator Swing Motor is a high-quality product designed for maximum performance and durability. Our team of experienced technicians is available to provide technical support and services to ensure that your excavator operates at peak efficiency. Our services include installation assistance, troubleshooting, and repair. We also offer maintenance and inspection services to help prevent issues before they occur. Our goal is to provide you with the support you need to keep your excavator running smoothly and efficiently.
