Length: 1,200 mm
Specification: DN19;1SN-12;10.5MPa
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

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Diagram Pipe No. 23

9234555

Installation route: 小臂油缸锁止阀~接线板(锁止阀)

Length: 5,300 mm
Specification: DN12;1SN-8;7MPa
Left fitting: 美制内螺纹37°内锥
Right fitting: 美制内螺纹37°内锥

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Diagram Pipe No. 43

4480078

Installation route: 电磁阀(隔板)~过渡阀块(隔板)

Length: 300 mm
Specification: DN6;1SN-4;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 美制内螺纹37°内锥

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Diagram Pipe No. 13

4249334

Installation route: Arm cylinder — leftOriginal Chinese: 小臂油缸左

Length: 850 mm
Specification: DN19;4SH-12;42MPa
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

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Diagram Pipe No. 12

4442429

Installation route: 分配阀上~液压油箱

Length: 450 mm
Specification: DN10;1SN-06;18MPa
Left fitting: 美制内螺纹74°内锥
Right fitting: 90°美制内螺纹74°内锥

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Diagram Pipe No. 23A

4613735

Installation route: 小臂油缸锁止阀~接线板(锁止阀)

Length: 5,300 mm
Specification: DN12;1SN-8;7MPa
Left fitting: 美制内螺纹37°内锥
Right fitting: 美制内螺纹37°内锥

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Diagram Pipe No. 12

4276956

Installation route: Arm cylinder — rightOriginal Chinese: 小臂油缸右

Length: 850 mm
Specification: DN25;4SH-16;38.8MPa
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

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Diagram Pipe No. 45

4250060

Installation route: 大臂(后段)~铁管(小臂油缸)

Length: 1,100 mm
Specification: DN19;4SP-12;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

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Diagram Pipe No. 10

4612612

Installation route: Boom cylinder — left 2 / left 3Original Chinese: 大臂油缸左2/左3

Length: 930 mm
Specification: DN16;4SP-10;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

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Diagram Pipe No. 44

4616031

Installation route: 过渡阀块(推土铲)~过渡阀块(隔板)

Length: 1,900 mm
Specification: DN6;1SN-4;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 美制内螺纹37°内锥

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Diagram Pipe No. 48A

4489054

Installation route: 支腿架油缸~铁管(支腿架)

Length: 350 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

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Diagram Pipe No. 7

9228216

Installation route: 小臂油缸锁止阀~大臂(锁止阀)

Length: 2,300 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

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Diagram Pipe No. 51

4467598

Installation route: 中转接头~电磁阀(踏板)

Length: 1,300 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

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Diagram Pipe No. 9

4611220

Installation route: 大臂油缸左1/左4

Length: 920 mm
Specification: DN19;4SP-12;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

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Diagram Pipe No. 14

4469297

Installation route: 大臂(前段)~大臂(后段)

Length: 810 mm
Specification: DN10;2SN-6;34.5MPa
Left fitting: 美制内螺纹37°内锥
Right fitting: 美制内螺纹37°内锥

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Diagram Pipe No. 47

4451995

Installation route: 过渡阀块(流速切换)~过渡阀块(隔板)

Length: 350 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

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Diagram Pipe No. 43

4286267

Installation route: Arm cylinder — leftOriginal Chinese: 小臂油缸左

Length: 750 mm
Specification: DN19;4SP-12;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

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Diagram Pipe No. 23A

4613736

Installation route: 分配阀上左~过渡阀块(锁止阀)

Length: 2,500 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

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Diagram Pipe No. 18A

4484097

Installation route: 控制阀(推土铲)~回油铁管(分配阀)

Length: 3,100 mm
Specification: DN12;1SN-8;7MPa
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

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Diagram Pipe No. 7A

4606148

Installation route: 小臂油缸锁止阀~大臂(锁止阀)

Length: 2,300 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

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Diagram Pipe No. 8

9224939

Installation route: 中转接头~分配阀下

Length: 1,000 mm
Specification: DN6;1SN-04;22.5MPa
Left fitting: 美制内螺纹74°内锥
Right fitting: 90°美制内螺纹74°内锥

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Diagram Pipe No. 30B

4470871

Installation route: 回转接头~电磁阀(变速箱)

Length: 1,300 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

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Diagram Pipe No. 31

4616031

Installation route: 过渡阀块(流速切换)~过渡阀块(推土铲)

Length: 1,900 mm
Specification: DN6;1SN-4;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 美制内螺纹37°内锥

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Diagram Pipe No. 34A

4374023

Installation route: 回转接头~过渡阀块(下盘)

Length: 900 mm
Specification: DN19;2SN-12;21.5MPa
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

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Diagram Pipe No. 66A

4605436

Installation route: 支腿架油缸~铁管(支腿架)

Length: 880 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

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Diagram Pipe No. 6A

4606397

Installation route: 推土铲油缸~铁管(推土铲)

Length: 630 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

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Diagram Pipe No. 10

4470006

Installation route: 左手柄~中转接头

Length: 3,500 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

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Diagram Pipe No. 47A

4389102

Installation route: 分节油缸

Length: 2,700 mm
Specification: DN19;4SP-12;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

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Diagram Pipe No. 66

9227746

Installation route: 支腿架油缸~铁管(支腿架)

Length: 880 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

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Diagram Pipe No. 21

4482948

Installation route: 大臂油缸黄油管

Length: 2,000 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

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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 ZX210W?

The current published data covers 11 systems and 77 hose records. Systems with more listed records include: Attachments (14 hoses), Boom Assembly (10 hoses), Swivel Joint (10 hoses), Attachments – Lock Valve (10 hoses), Control Lever (9 hoses), Attachments – Quick Coupler (5 hoses).

What is the hose length range for Hitachi ZX210W?

Based on published records with valid lengths, the range is 300–5,300 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi ZX210W?

The most frequent raw specifications in the current published records are: DN10;1SN-6;7Mpa (19 records), DN6;1SN-04;22.5MPa (14 records), DN6;1SN-4;7Mpa (7 records), DN10;1SN-06;18MPa (6 records), DN19;4SP-12;34.5Mpa (5 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi ZX210W?

Each record keeps the left and right fitting descriptions separate. Current examples: 4362376: left 美制内螺纹37°内锥; right 美制内螺纹37°内锥; 4295828: left 美制内螺纹37°内锥; right 美制内螺纹37°内锥; 4437634: 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 ZX210W hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 9A (4362376), Pipe No. 30 (4295828), Pipe No. 8 (4437634), Pipe No. 5 (4429280). Open a record to compare its installation position with the linked manual page.

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I am checking hydraulic hose repair information for "Hitachi ZX210W Hose Repair Data". 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/machines/hitachi/zx210w--5a5832313057/

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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