Hydraulic line repair data

Hitachi ZX370 Hose Repair Data

Hitachi ZX370 currently has 122 published hose records for checking length, hose specification, left and right fittings, part number, and diagram pipe number.

Hoses: 122 records
Full specifications: 122 records
Systems: 16 systems
Length range: 250–6,660 mm

Hose repair details

Hose Length and Fitting List

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

Diagram Pipe No. 59

4456549

Installation route: 中转接头~分配阀下

Length: 1,500 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. 27

9190867

Installation route: 分配阀下~分配阀上

Length: 1,000 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

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Diagram Pipe No. 21

4438288

Installation route: 右手柄~进回油阀

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

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Diagram Pipe No. 16

4442331

Installation route: 分配阀后~电磁阀

Length: 500 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. 15A

4625788

Installation route: 机油管

Length: 700 mm
Specification: DN16;1SN-10;13Mpa
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. 62

4456553

Installation route: 中转接头~分配阀下

Length: 1,550 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

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Diagram Pipe No. 19

4405562

Installation route: 液压油箱~电磁阀

Length: 800 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. 16A

4428617

Installation route: 机油管

Length: 1,300 mm
Specification: DN16;1SN-10;13Mpa
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. 58

4437292

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

Length: 730 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. 16A

4401540

Installation route: 黄油泵~大臂(黄油)

Length: 3,000 mm
Specification: DN6;1SN-4;10.5MPa
Left fitting: 美制内螺纹37°内锥
Right fitting: 公制卡套式

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Diagram Pipe No. 5

4468295

Installation route: 行走踏板~分配阀下右

Length: 3,450 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

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Diagram Pipe No. 11

9163647

Installation route: 回转接头~分配阀左上/右上

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: 90° light-series flangeOriginal Chinese: 90°法兰-轻型

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Diagram Pipe No. 56

4456551

Installation route: 中转接头~分配阀上

Length: 1,700 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. 31A

4649776

Installation route: 小臂油缸锁止阀~接线板(锁止阀)

Length: 6,300 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. 24

4294425

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

Length: 2,250 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: 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. 34

4394216

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

Length: 280 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. 23

4456560

Installation route: 左手柄~中转接头

Length: 1,800 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

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Diagram Pipe No. 2

9190854

Installation route: 分配阀前~回转马达

Length: 500 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. 7

4459641

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

Length: 2,550 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

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Diagram Pipe No. 61

4437731

Installation route: 中转接头~分配阀下

Length: 1,400 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

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Diagram Pipe No. 11

4289772

Installation route: 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

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Diagram Pipe No. 15A

4443751

Installation route: 机油管

Length: 1,200 mm
Specification: DN16;1SN-10;13Mpa
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. 21

4454736

Installation route: 模式转换阀~接线板(中转接头)

Length: 370 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. 47

4452733

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

Length: 450 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. 25

4294424

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

Length: 2,250 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: 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. 11

9234902

Installation route: 大臂(快换)~控制阀(快换)

Length: 2,200 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

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Diagram Pipe No. 60

4415389

Installation route: 大臂(破碎器)~回油铁管(液压油箱)

Length: 3,100 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

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Diagram Pipe No. 35

4465688

Installation route: 分配阀下~液压油箱

Length: 1,200 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

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Diagram Pipe No. 17

4451995

Installation route: 液压泵~过渡阀块(先导泵)

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. 15A

4608498

Installation route: 机油管

Length: 700 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. 26

9235478

Installation route: 回转接头~分配阀左下

Length: 960 mm
Specification: DN25;4SH-16;34.5Mpa
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. 26A

4614852

Installation route: 回转接头~分配阀左下

Length: 960 mm
Specification: DN25;4SH-16;34.5Mpa
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. 13

4437944

Installation route: 进回油阀~电磁阀(进回油阀)

Length: 650 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. 54

4456548

Installation route: 中转接头~分配阀上

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

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Diagram Pipe No. 16

4442331

Installation route: 分配阀后~电磁阀

Length: 500 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. 7

4438098

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

Length: 2,400 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

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Narrow the selection

Control Lever23 hoses Control Valve18 hoses Swivel Joint16 hoses Attachments – Breaker12 hoses Engine Oil Lines9 hoses Grease Lines9 hoses Attachments7 hoses Attachments – Quick Coupler7 hoses Boom Assembly5 hoses Hydraulic Pump4 hoses Pedal4 hoses Hydraulic Tank2 hoses Solenoid Valve2 hoses Attachments – Lock Valve2 hoses

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 ZX370?

The current published data covers 16 systems and 122 hose records. Systems with more listed records include: Control Lever (23 hoses), Control Valve (18 hoses), Swivel Joint (16 hoses), Attachments – Breaker (12 hoses), Engine Oil Lines (9 hoses), Grease Lines (9 hoses).

What is the hose length range for Hitachi ZX370?

Based on published records with valid lengths, the range is 250–6,660 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi ZX370?

The most frequent raw specifications in the current published records are: DN10;1SN-06;18MPa (36 records), DN6;1SN-04;22.5MPa (26 records), DN10;1SN-6;7Mpa (8 records), DN25;4SP-16;32Mpa (7 records), DN25;4SH-16;34.5Mpa (6 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi ZX370?

Each record keeps the left and right fitting descriptions separate. Current examples: 4456549: left 美制内螺纹74°内锥; right 90°美制内螺纹74°内锥; 9190867: left 美制内螺纹74°内锥; right 90°美制内螺纹74°内锥; 4438288: 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 ZX370 hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 59 (4456549), Pipe No. 27 (9190867), Pipe No. 21 (4438288), Pipe No. 16 (4442331). Open a record to compare its installation position with the linked manual page.

Hose Length and Fitting List

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Common Repair Questions