Hydraulic line repair data

Hitachi ZX450LC Hose Repair Data

Coverage details
Hoses
136 records
Full specifications
136 records
Systems
16 systems
Length range
230–3,600 mm

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Hose repair details

Hose Length and Fitting List

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

Diagram Pipe No. 51

4484019

Installation route: 行走踏板~中转接头

Length
3,150 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. 13

4435310

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

Length
2,900 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
View full repair specifications

Diagram Pipe No. 15

4446842

Installation route: 中转接头~分配阀上

Length
1,900 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. 26

4442655

Installation route: 回转接头~电磁阀

Length
2,000 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
View full repair specifications

Diagram Pipe No. 1

4446832

Installation route: 中转接头~分配阀下

Length
1,700 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. 43

4450909

Installation route: 中转接头~过渡阀块(支架)

Length
500 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. 55

4459256

Installation route: 中转接头~分配阀上

Length
1,650 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. 19

4450428

Installation route: 行走踏板~进回油阀

Length
650 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

4107297

Installation route: Arm-cylinder grease lineOriginal Chinese: 小臂油缸黄油管

Length
600 mm
Specification
DN6;1SN-04;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. 31

4450779

Installation route: 右大臂销黄油管

Length
1,150 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. 25

4368895

Installation route: 分配阀左~过渡阀块(分配阀)

Length
650 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. 5

4484025

Installation route: 右手柄~中转接头

Length
3,100 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

4316572

Installation route: 回转接头~分配阀左下

Length
1,450 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
45° heavy-series flangeOriginal Chinese: 45°法兰-重型
View full repair specifications

Diagram Pipe No. 49

4484017

Installation route: 行走踏板~中转接头

Length
3,150 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. 15

4484031

Installation route: 左手柄~中转接头

Length
3,000 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. 17

4437663

Installation route: 中转接头~分配阀下

Length
1,600 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. 42

4450908

Installation route: 中转接头~过渡阀块(支架)

Length
500 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. 18A

4367008

Installation route: 分配阀下~分配阀右

Length
1,000 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. 10A

4462256

Installation route: 破碎器踏板~中转接头

Length
3,050 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. 33

4305747

Installation route: 大臂黄油管

Length
400 mm
Specification
DN6;2SN-4;27.5MPa
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. 62

4459255

Installation route: 过渡阀块(分配阀)~过渡阀块(支架)

Length
1,800 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
View full repair specifications

Diagram Pipe No. 37

9210754

Installation route: Swing motor → return steel line (hydraulic tank)Original Chinese: 回转马达~回油铁管(液压油箱)

Length
1,500 mm
Specification
DN13;1SN-08;16MPa
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. 1

4218064

Installation route: 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

4437442

Installation route: 回转马达(左)~回转马达(右)

Length
550 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
View full repair specifications

Diagram Pipe No. 57

4459258

Installation route: 中转接头~分配阀上

Length
1,950 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. 34

4607461

Installation route: 大臂黄油管

Length
280 mm
Specification
DN6;2SN-4;27.5MPa
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. 102

4259804

Installation route: 大臂左3/左4/左5/左6

Length
2,550 mm
Specification
DN25;4SP-16;32Mpa
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. 40

4323284

Installation route: 分配阀前~回转马达

Length
420 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
View full repair specifications

Diagram Pipe No. 7

4484027

Installation route: 右手柄~中转接头

Length
3,100 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. 32

4447833

Installation route: 液压油箱~电磁阀

Length
1,300 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. 18

4436267

Installation route: 过渡阀块(破碎器)~过渡阀块(破碎器)

Length
420 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. 42

4450908

Installation route: 中转接头~过渡阀块(支架)

Length
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
View full repair specifications

Diagram Pipe No. 55

4459266

Installation route: 进回油阀~中转接头

Length
2,900 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
View full repair specifications

Diagram Pipe No. 24

4295191

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

Length
3,120 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
View full repair specifications

Diagram Pipe No. 33

4458532

Installation route: 蓄能器~过渡阀块(分配阀)

Length
1,340 mm
Specification
DN6;1SN-04;22.5MPa
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. 30

4317872

Installation route: 左大臂销黄油管

Length
1,200 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

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 ZX450LC?

The current published data covers 16 systems and 136 hose records. Systems with more listed records include: Control Lever (35 hoses), Control Valve (22 hoses), Grease Lines (18 hoses), Swing Motor (10 hoses), Swivel Joint (8 hoses), Hydraulic Tank (7 hoses).

What is the hose length range for Hitachi ZX450LC?

Based on published records with valid lengths, the range is 230–3,600 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi ZX450LC?

The most frequent raw specifications in the current published records are: DN10;1SN-06;18MPa (56 records), DN6;1SN-04;22.5MPa (18 records), DN10;1SN-6;7Mpa (16 records), DN13;1SN-08;16MPa (8 records), DN25;4SH-16;38.8MPa (4 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi ZX450LC?

Each record keeps the left and right fitting descriptions separate. Current examples: 4484019: left 美制内螺纹74°内锥; right 美制内螺纹74°内锥; 4435310: left 美制内螺纹74°内锥; right 90°美制内螺纹74°内锥; 4446842: 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 ZX450LC hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 51 (4484019), Pipe No. 13 (4435310), Pipe No. 15 (4446842), Pipe No. 26 (4442655). 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 ZX450LC 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/zx450lc--5a583435304c43/

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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