EX300-3 EX300LC-3 EX300H-3 EX300LCH-3 hitachi pump assembly 9122780 9136850 Excavator Hydraulic Pump Repair Kit
PRODUCT DESCRIPTION |
Model:EX300-3 EX300LC-3 EX300H-3 EX300LCH-3 single pump excavator hydraulic pump | Ategory: Hydraulic Pump |
Brand:Hitachi | Place of Origin:Other Country |
Condition: Original & Oem | Warranty: 12 months |
MOQ: 1 pcs | Production Capacity: 1000pcs /Month |
Standard or Nonstandard: Standard | Payment Term: L/C,T/T, Western Union, Tradeassurance |
Delivery Time: 1-3 days (depend on order) | Means of Transport: By Sea, Air or DHL/FEDEX/TNT/EMS |
Guarantee: We will check and send detailed pictures to buyers for confirmation |
The hydraulic pump is a critical component that obtains power from the engine and converts it into hydraulic oil flow. This high-pressure fluid moves your boom, arm, bucket, and swing with incredible force and precision through hoses. Without a sturdy and reliable pump, even the strongest excavator will become sluggish and powerless. Choosing the right pump is not only about power; This is about perfectly matching the capacity and pressure rating of the pump with the size and typical operation of the machine. A pump that is too small in size will struggle, overheat, and quickly wear out. An excessively large pump wastes the power and fuel of the engine. This is the core of efficiency and productivity.
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.
Product Advantages
List of spare parts
# | Part No | Part Name | Qty. | Price request |
| 9122780 | PUMP; SINGLE | 2 | |
| (9136850) | PUMP; SINGLE | 2 | |
02 | 1014184 | . CASING; PUMP | 1 | |
03 | 8046112 | . PACKING | 1 | |
04 | 2023051 | . DISC; DRIVING | 1 | |
06 | 4190694 | . BRG.; ROL. | 1 | |
07 | 4209323 | . BRG.; ROL. | 1 | |
08 | 3035965 | . SPACER | 1 | |
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 | |
Excavator Hydraulic Pumps:
Hyundai | R110-7 | K3V63DT-1R0R-9N1S-1C |
Hyundai | R130LC-3 | K3V63DT-1R0R-9N01-2A |
Hyundai | R140LC-7 | K3V63DT-1R0R-9C0S-1D |
Hyundai | R160LC-3 | K3V63DT-1R0R-9N1S-B |
Hyundai | R210LC-3 | K3V112DT-1RER-9C39-1 |
Hyundai | R210LC-7 | K3V112DT-1CER-9C32-1 |
Hyundai | R210LC-7A | K3V112DT-1LHR-9C32 |
Hyundai | R220LC-9S | K3V112DT-1DFR-9N62 |
Hyundai | R250LC | K3V112DT-1RER-9C39-1 |
Hyundai | R250LC-7 | K3V112DT-1CER-9C32-2B |
Hyundai | R250LC-7A | K3V112DT-1LHR-9C52 |
Hyundai | R290LC-3 | K3V140DT-1R2R-9N29-A |
Hyundai | R290LC-7 | K3V140DT-1CER-9C12-D |
Hyundai | R290LC-7 | K5V140DTP1K9R-9C12-L |
Hyundai | R290LC-7A | K5V140DTP1J9R-9C12-1AL |
Hyundai | R290NLC-7A | K5V140DTP1J9R-9C12-1AL |
Hyundai | R300LC-9 | K5V140DTP1E9R-9N02-1 |
Hyundai | R300LC-9A | K5V140DTP1E9R-9N02-1 |
Hyundai | R305LC-7 | K5V140DTP1J9R-9C12-AL |
Hyundai | R320LC-7 | K3V180DT-1RER-9C69-DL |
Hyundai | R320LC-7A | K3V180DT-1RER-9C69-DL |
Hyundai | R350 | K3V180DTH1H1R-9N4S-1T |
Hyundai | R360LC-7 | K3V180DTH1P0R-9C0S |
Hyundai | R360LC-7A | K3V180DTH1P0R-9C0S-1AL |
Hyundai | R450LC-7 | K5V200DTH10JR-9C0Z-VT |
Hyundai | R500LC-7 | K5V200DTH10JR-9C0Z-VT |
Hyundai | R3000LC-7 | K5V140DTP1H9R-9C12 |



FAQ
1.What is the warranty time of the products?
The warranty time is 3/6 months based on the item details; We don't provide warranty time for original and used products.
2.What is your delivery time?
Generally, we will arrange the goods within 24 hours after your payment; if not in stock, the delivery time will be communied in advance, usually 3-7 days
3.What are your main products ?
We are specialized in spare parts for excavator hydraulic system, such as travel motor,swing motor, travel gearbox,swing gearbox,gear parts, hydraulic pump,hydraulic parts,etc.If you need other excavator parts, we also can supply as your requirements.