Hydraulic line repair data

Hitachi Hydraulic Hose Directory

Search by model, brand, part number, system, or installation route. Open a hose record to check its length, specification, end fittings, and diagram.

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Coverage details
Hoses
10,754 records
Full specifications
10,754 records
Systems
17 systems
Length range
180–10,000 mm

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ZX450LC-3Browse hose recordsZX850LC-3Browse hose recordsZX650LC-3Browse hose recordsZX450LCBrowse hose recordsZX470LC-6Browse hose recordsZX470LC-5BBrowse hose recordsZX120-3Browse hose recordsZX330LCBrowse hose recordsZX240LC-3Browse hose recordsZX200LCBrowse hose recordsZX350LC-3Browse hose recordsZX270LC-3Browse hose recordsZX370Browse hose recordsZX470LC-5GBrowse hose recordsEX750-5Browse hose recordsZX210W-3Browse hose recordsZX225US-3Browse hose recordsZX225USLC-3Browse hose records

17 published models

Handwritten technical data

Browse workshop notebook material for Hitachi models. Confirm each hose, fitting, route, and manufacturing dimension on the machine.

Hose repair details

Hose Length and Fitting List

Showing 36 representative records. Return to the finder for a more specific search.

Diagram Pipe No. 16

4372796

Installation route: 破碎器踏板~过渡阀块(踏板)

Length
310 mm
Specification
DN10;1SN-6;7Mpa
Left fitting
美制内螺纹37°内锥
Right fitting
美制内螺纹37°内锥
View full repair specifications

Diagram Pipe No. 24

4351192

Installation route: 右手柄~中转接头

Length
1,800 mm
Specification
DN10;1SN-06;7Mpa
Left fitting
美制内螺纹37°内锥
Right fitting
美制内螺纹37°内锥
View full repair specifications

Diagram Pipe No. 0

4649317

Installation route: 左手柄~进回油阀

Length
2,200 mm
Specification
DN10;1SN-06;18MPa
Left fitting
美制内螺纹74°内锥
Right fitting
美制内螺纹74°内锥
View full repair specifications

Diagram Pipe No. 2

4308037

Installation route: 先导泵~吸油铁管

Length
400 mm
Specification
DN19;4层纤维-12;3.5MPa
Left fitting
American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting
American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
View full repair specifications

Diagram Pipe No. 15A

4313443

Installation route: 回转接头~回油铁管(液压油箱)

Length
2,500 mm
Specification
DN13;1SN-08;16MPa
Left fitting
美制内螺纹74°内锥
Right fitting
90°美制内螺纹74°内锥
View full repair specifications

Diagram Pipe No. 7

4285795

Installation route: 先导泵~控制阀(辅助)

Length
500 mm
Specification
DN12;4SP-8;34.5Mpa
Left fitting
American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting
American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
View full repair specifications

Diagram Pipe No. 9

4365785

Installation route: 推土铲手柄~行走推杆

Length
600 mm
Specification
DN10;1SN-6;7Mpa
Left fitting
美制内螺纹37°内锥
Right fitting
美制内螺纹37°内锥
View full repair specifications

Diagram Pipe No. 8

FF502640

Installation route: 电磁阀~中转接头

Length
2,200 mm
Specification
DN10;1SN-6;7Mpa
Left fitting
美制内螺纹37°内锥
Right fitting
美制内螺纹37°内锥
View full repair specifications

Diagram Pipe No. 28

4462262

Installation route: 大臂(辅助)~控制阀(辅助)

Length
3,000 mm
Specification
DN10;2SN-6;34.5MPa
Left fitting
美制内螺纹37°内锥
Right fitting
45°美制内螺纹37°内锥
View full repair specifications

Diagram Pipe No. 4

4627276

Installation route: 行走踏板~分配阀上右

Length
3,850 mm
Specification
DN10;1SN-06;18MPa
Left fitting
美制内螺纹74°内锥
Right fitting
美制内螺纹74°内锥
View full repair specifications

Diagram Pipe No. 2

4218415

Installation route: 备用踏板~接线板(中转接头)

Length
2,300 mm
Specification
DN10;1层纤维-6;14MPa
Left fitting
美制内螺纹37°内锥
Right fitting
90°美制内螺纹37°内锥
View full repair specifications

Diagram Pipe No. 20A

4409091

Installation route: 大臂(快换)~控制阀(快换)

Length
1,770 mm
Specification
DN10;2SN-6;34.5MPa
Left fitting
美制内螺纹37°内锥
Right fitting
45°美制内螺纹37°内锥
View full repair specifications

Diagram Pipe No. 19

4367714

Installation route: 铲斗油缸黄油管

Length
700 mm
Specification
DN6;1SN-4;7Mpa
Left fitting
英制内螺纹30°外锥
Right fitting
英制内螺纹30°外锥
View full repair specifications

Diagram Pipe No. 15

4707578

Installation route: 左手柄~中转接头

Length
3,300 mm
Specification
DN10;1SN-6;7Mpa
Left fitting
美制内螺纹37°内锥
Right fitting
美制内螺纹37°内锥
View full repair specifications

Diagram Pipe No. 2

4437072

Installation route: Right boom-cylinder grease lineOriginal Chinese: 右大臂油缸黄油管

Length
2,920 mm
Specification
DN6;2层纤维-4;14MPa
Left fitting
美制内螺纹37°内锥
Right fitting
美制内螺纹37°内锥
View full repair specifications

Diagram Pipe No. 19

4445276

Installation route: 液压泵~堵头(减震管)

Length
400 mm
Specification
DN10;1SN-06;18MPa
Left fitting
美制内螺纹74°内锥
Right fitting
美制内螺纹74°内锥
View full repair specifications

Diagram Pipe No. 38

9290833

Installation route: 电磁阀~电磁阀(液压泵)

Length
1,000 mm
Specification
DN6;1SN-04;7Mpa
Left fitting
美制内螺纹37°内锥
Right fitting
90°美制内螺纹37°内锥
View full repair specifications

Diagram Pipe No. 12

4714301

Installation route: 右手柄~中转接头

Length
4,900 mm
Specification
DN10;1SN-6;7Mpa
Left fitting
美制内螺纹37°内锥
Right fitting
美制内螺纹37°内锥
View full repair specifications

Diagram Pipe No. 76

4722363

Installation route: 中转接头~分配阀上左

Length
680 mm
Specification
DN10;1SN-6;7Mpa
Left fitting
美制内螺纹37°内锥
Right fitting
美制内螺纹37°内锥
View full repair specifications

Diagram Pipe No. 0

4678315

Installation route: 中转接头~分配阀上

Length
670 mm
Specification
DN10;1SN-6;7Mpa
Left fitting
美制内螺纹37°内锥
Right fitting
美制内螺纹37°内锥
View full repair specifications

Diagram Pipe No. 0

4643670

Installation route: Swivel joint → travel motorOriginal Chinese: 回转接头~行走马达

Length
1,800 mm
Specification
DN19;4SP-12;35Mpa
Left fitting
American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting
90° elbow, American female thread, flat-face sealOriginal Chinese: 90°美制内螺纹平面密封
View full repair specifications

Diagram Pipe No. 27

4630933

Installation route: 中转接头~分配阀下

Length
1,150 mm
Specification
DN10;1SN-06;18MPa
Left fitting
美制内螺纹74°内锥
Right fitting
45°美制内螺纹74°内锥
View full repair specifications

Diagram Pipe No. 15

4203036

Installation route: 右手柄~接线板(中转接头)

Length
2,000 mm
Specification
DN10;1层纤维-6;14MPa
Left fitting
美制内螺纹37°内锥
Right fitting
美制内螺纹37°内锥
View full repair specifications

Diagram Pipe No. 19

4650840

Installation route: 大臂(前段)~大臂(后段)

Length
1,650 mm
Specification
DN32;6SP-20;34.5MPa
Left fitting
American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting
American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
View full repair specifications

Diagram Pipe No. 1

4257291

Installation route: Right boom-cylinder grease lineOriginal Chinese: 右大臂油缸黄油管

Length
3,600 mm
Specification
DN6;1SN-04;22.5MPa
Left fitting
美制内螺纹74°内锥
Right fitting
美制内螺纹74°内锥
View full repair specifications

Diagram Pipe No. 19A

4429426

Installation route: 回转接头~回油铁管(液压油箱)

Length
1,850 mm
Specification
DN13;2SN-08;27.5MPa
Left fitting
美制内螺纹74°内锥
Right fitting
90°美制内螺纹74°内锥
View full repair specifications

Diagram Pipe No. 50

4634368

Installation route: 中转接头~分配阀下

Length
1,150 mm
Specification
DN10;1SN-06;18MPa
Left fitting
美制内螺纹74°内锥
Right fitting
美制内螺纹74°内锥
View full repair specifications

Diagram Pipe No. 30

4659943

Installation route: 轮上作动筒~铁管(作动筒)

Length
760 mm
Specification
DN10;1SN-6;7Mpa
Left fitting
美制内螺纹37°内锥
Right fitting
90°美制内螺纹37°内锥
View full repair specifications

Diagram Pipe No. 27

4656800

Installation route: 分配阀前~过渡阀块(分配阀)

Length
400 mm
Specification
DN6;1SN-04;22.5MPa
Left fitting
45°美制内螺纹74°内锥
Right fitting
90°美制内螺纹74°内锥
View full repair specifications

Diagram Pipe No. 24

4267668

Installation route: Swivel joint → travel motorOriginal Chinese: 回转接头~行走马达

Length
2,400 mm
Specification
DN13;2SN-08;27.5MPa
Left fitting
美制内螺纹74°内锥
Right fitting
美制内螺纹74°内锥
View full repair specifications

Diagram Pipe No. 10

4622684

Installation route: Left boom-cylinder grease lineOriginal Chinese: 左大臂油缸黄油管

Length
3,400 mm
Specification
DN6;1SN-04;22.5MPa
Left fitting
美制内螺纹74°内锥
Right fitting
美制内螺纹74°内锥
View full repair specifications

Diagram Pipe No. 2

4373640

Installation route: 行走踏板~中转接头

Length
2,700 mm
Specification
DN10;1SN-6;7Mpa
Left fitting
美制内螺纹37°内锥
Right fitting
90°美制内螺纹37°内锥
View full repair specifications

Diagram Pipe No. 3

4315339

Installation route: 回转接头~接头(转向油缸)

Length
1,050 mm
Specification
DN10;4SH-06;44.5MPa
Left fitting
美制内螺纹74°内锥
Right fitting
90°美制内螺纹74°内锥
View full repair specifications

Diagram Pipe No. 7

4713480

Installation route: 中转接头~分配阀上左

Length
700 mm
Specification
DN10;1SN-06;18MPa
Left fitting
美制内螺纹74°内锥
Right fitting
美制内螺纹74°内锥
View full repair specifications

Diagram Pipe No. 3

4632041

Installation route: 分配阀右~电磁阀

Length
500 mm
Specification
DN6;1SN-04;22.5MPa
Left fitting
90°美制内螺纹74°内锥
Right fitting
45°美制内螺纹74°内锥
View full repair specifications

Manual coverage

Machines with PDF Manuals

Use these manuals to identify the machine and system. Hose-level specifications appear on individual hose records.

Based on current published data

Common Repair Questions

Questions appear only when a published record or linked PDF page provides the answer.

Which systems and hoses are currently listed for Hitachi?

The current published data covers 17 systems and 10754 hose records. Systems with more listed records include: ZX650LC-3 · Control Lever (51 hoses), ZX450LC-3 · Control Lever (49 hoses), ZX850LC-3 · Control Lever (46 hoses), ZX225US-3 · Control Lever (44 hoses), ZX225USLC-3 · Control Lever (44 hoses), ZX120-3 · Control Lever (36 hoses).

What is the hose length range for Hitachi?

Based on published records with valid lengths, the range is 180–10,000 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi?

The most frequent raw specifications in the current published records are: DN10;1SN-06;18MPa (2396 records), DN10;1SN-6;7Mpa (2287 records), DN6;1SN-04;22.5MPa (1522 records), DN6;1SN-4;7Mpa (646 records), DN10;1层纤维-6;14MPa (480 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi?

Each record keeps the left and right fitting descriptions separate. Current examples: 4372796: left 美制内螺纹37°内锥; right 美制内螺纹37°内锥; 4351192: left 美制内螺纹37°内锥; right 美制内螺纹37°内锥; 4649317: left 美制内螺纹74°内锥; right 美制内螺纹74°内锥. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Hitachi hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 16 (4372796), Pipe No. 24 (4351192), Pipe No. 0 (4649317), Pipe No. 2 (4308037). Open a record to compare its installation position with the linked manual page.

Optional cross-check

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I am checking hydraulic hose repair information for "Hitachi Hydraulic Hose Directory". Use web search and cite a source for every factual point. Compare this HoseSeek page with manufacturer manuals and reliable parts documentation: https://www.hoseseek.com/brands/hitachi/

Verify, where applicable:
1. Exact machine model and any serial-number range.
2. Hydraulic system and installation route.
3. Hose part number and diagram pipe number.
4. Finished length, hose specification, and pressure rating.
5. Both end fittings, including thread, sealing seat, size, and angle.
6. Installation-diagram position and routing.

State explicitly what you could not verify. Do not infer a missing dimension or fitting. End with a short on-machine checklist for a hose repair technician.
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