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GZ Yuexiang Engineering Machinery Co., Ltd.

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City:guangzhou

Province/State:guangdong

Country/Region:china

Contact Person:MrDongdong Yao

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China Hitachi EX300-3 EX300LC-3 EX300H-3 EX300LCH-3 Main Pump 9122780 9136850 High-Pressure Excavator Hydraulic Pump wholesale

Hitachi EX300-3 EX300LC-3 EX300H-3 EX300LCH-3 Main Pump 9122780 9136850 High-Pressure Excavator Hydraulic Pump

Name: Hitachi EX3003 EX300LC3 EX300H3 EX300LCH3 Main Pump 9122780 9136850 HighPressure Excavator Hydraulic Pump
Brand: Belparts
Price: 1 USD

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Brand Name :Belparts

Model Number :EX300-3 EX300LC-3 EX300H-3 EX300LCH-3

Place of Origin :China

MOQ :1PCS

Price :Negotiated price

Payment Terms :T/T, Western Union,Paypal

Supply Ability :500 pieces per month

Delivery Time :2-5days

Packaging Details :Wooden

Model :EX300-3 EX300LC-3 EX300H-3 EX300LCH-3

Part number :9122780 9136850

Product name :EX300-3 EX300LC-3 EX300H-3 EX300LCH-3 pump assy

Application :Excavator parts

Part name :PUMP PISTON

Brand :HITACHI

Highlight :9122780 9136850 High-Pressure Excavator Hydraulic Pump

Warranty :6 months

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Hitachi EX300-3 EX300LC-3 EX300H-3 EX300LCH-3 main Pump 9122780 9136850 High-Pressure Excavator Hydraulic Pump

PRODUCT DESCRIPTION
Model:EX300-3 EX300LC-3 EX300H-3 EX300LCH-3 single pump excavator hydraulic pump	Ategory: Hydraulic Pump
Brand:KAWASAK	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

Hydraulic oil's importance to pumps equals blood's to the human heart. Improper or contaminated oil causes most hydraulic pump failures. Consider these factors when selecting hydraulic oil:

Viscosity grade: Choose appropriate viscosity (e.g., ISO VG 46) based on ambient temperature. Excessive viscosity increases startup resistance; insufficient viscosity impairs lubrication.
Oil quality: Select oil meeting manufacturer specifications; avoid cheap, low-quality alternatives.
Cleanliness: Hydraulic systems demand extremely clean oil—even new oil requires filtration before use.
Proper maintenance significantly extends hydraulic pump service life:
Regularly check oil levels: Maintain proper tank levels; low levels can cause pump cavitation damage.
Monitor oil temperature: Ideal operating temperature ranges between 40-60°C; higher temperatures accelerate oil degradation.
Listen for abnormal noises: Unusual sounds often signal impending failure, requiring prompt inspection.
Replace filters regularly: Change hydraulic oil filters per manufacturer recommendations to maintain oil cleanliness.
Inspect seals: Address external leaks immediately to prevent air entering the system.

List of spare parts

#	Part No	Part Name	Qty.
	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

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.

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