Excavator Spare Parts CX210B KRJ17131 Pump Assy K3V112DP-XDPR-9Y00 Hydraulic Main Pump
Excavator spare parts CX210B KRJ17131 pump assy K3V112DP-XDPR-9Y00 hydraulic main pump
The hydraulic pump converts mechanical energy into hydraulic energy to power the excavator's hydraulic system. When the engine drives the pump shaft to rotate, the internal pistons or gear sets create oil suction and compression processes, forming a high-pressure oil flow. Belparts hydraulic pumps feature variable displacement design that automatically adjusts output flow according to load requirements, achieving high energy efficiency.
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Belparts excavator hydraulic main pump |
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Place of Origin: |
China(mainland) |
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Model: |
CX210B |
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Part number: |
KRJ17131 |
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Payment term: |
T/T & PayPal |
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Delivery time: |
Within 2 days after receiving the payment |
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Packing: |
Standard exporting packing or as required |
| 09 | 4191665 | . NUT; BRG. | 1 | |
| 13 | 8049118 | . PISTON | 7 | |
| 13 | 8051275 | . PISTON | 7 | |
| 14 | 2022744 | . ROTOR | 1 | |
| 16 | 8035539 | . SHAFT; CENTER | 1 | |
| 17 | 4184779 | . BALL | 1 | |
| 18 | 4191667 | . RING; RETAINING | 1 | |
| 19 | 4194362 | . SPRING; COMPRES. | 1 | |
| 20 | 4193062 | . RING; RETAINING | 1 | |
| 21 | 4198956 | . PIN | 1 | |
| 23 | 3035966 | . COVER; SEAL | 1 | |
| 24 | 4191664 | . O-RING | 1 | |
| 25 | 4094325 | . RING; RETAINING | 1 | |
| 26 | 4232070 | . SEAL; OIL | 1 | |
| 27 | 9742978 | . VALVE | 1 | |
| 31 | 3039569 | . LINK | 1 | |
| 32 | 9724756 | . LEVER | 2 | |
| 34 | 4179179 | . PIN | 2 | |
| 35 | 4179177 | . PIN | 2 | |
| 36 | 4200227 | . PIN | 1 | |
| 37 | 4179176 | . PIN | 1 | |
| 38 | 4146370 | . RING; RETAINING | 6 | |
| 39 | 1011957 | . HEAD | 1 | |
| 39 | 1011956 | . HEAD | 1 | |
| 41 | 3036326 | . PISTON; SERVO | 1 | |
| 42 | 4193245 | . PIN | 1 | |
| 43 | 4179838 | . SCREW; SET | 1 | |
| 46 | 4099290 | . PIN; SPRING | 2 | |
| 48 | 4180349 | . O-RING | 10 | |
| 49 | M341245 | . BOLT; SOCKET | 8 | |
| 50 | 495841 | . WASHER; SPRING | 8 | |
| 51 | 4108720 | . PLUG | 1 | |
| 51A | 957366 | .. O-RING | 1 | |
| 52 | 4204862 | . STOPPER | 1 | |
| 53 | 955020 | . O-RING | 1 | |
| 59 | 984623 | . O-RING | 1 | |
| 62 | 4216295 | . STOPPER | 1 | |
| 63 | M340820 | . BOLT; SOCKET | 8 | |
| 64 | 4514388 | . WASHER; SPRING | 8 | |
| 66 | 9122781 | . REGULATOR |
1 | |
| 66 | (9136851) | . REGULATOR |
1 | |
| 69 | A810055 | . O-RING | 1 | |
| 70 | 4515041 | . PIN; SPRING | 2 | |
| 75 | 3065868 | . NAME-PLATE | 1 | |
| 76 | M492564 | . SCREW; DRIVE | 2 | |
| 78 | 4211432 | . PLUG | 1 | |
| 79 | 4506424 | . O-RING | 1 | |
| 81 | 9089486 | . PLUG | 1 | |
| 81A | 4509180 | .. O-RING | 1 |
Working pressure, measured in megapascals (MPa) or bars (bar), indicates a pump's maximum output pressure, directly determining the thrust or torque a hydraulic system can generate. Standard gear pumps typically operate at 16-21MPa, while high-performance piston pumps reach 35-42MPa.
Higher pressures enable hydraulic cylinders and motors to generate greater force, allowing excavators to lift heavier loads or dig tougher materials. However, high pressure also demands better seals and piping, increasing leakage risks. Modern excavator hydraulic systems typically operate at 30-35MPa, balancing power and reliability.
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