Hydraulic line repair data

Hitachi EX370-5 Hose Repair Data

Hitachi EX370-5 currently has 64 published hose records for checking length, hose specification, left and right fittings, part number, and diagram pipe number.

Hoses: 64 records
Full specifications: 64 records
Systems: 11 systems
Length range: 210–6,660 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. 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

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Diagram Pipe No. 23

4373563

Installation route: 右手柄~中转接头

Length: 1,850 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. 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. 13

4316009

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

Length: 3,650 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. 27

4346074

Installation route: 左手柄~中转接头

Length: 2,000 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

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Diagram Pipe No. 7

4284184

Installation route: 中转接头~分配阀上

Length: 1,600 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

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Diagram Pipe No. 29

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. 12

4354356

Installation route: 中转接头~分配阀上

Length: 1,750 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

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Diagram Pipe No. 7

4333394

Installation route: 左手柄~进回油阀

Length: 780 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. 4

4401234

Installation route: 大臂黄油管

Length: 6,660 mm
Specification: DN5;2层纤维-3;14MPa
Left fitting: 美制内螺纹37°内锥
Right fitting: 公制卡套式

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Diagram Pipe No. 2

4407364

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

Length: 3,400 mm
Specification: DN5;2层纤维-3;14MPa
Left fitting: 美制内螺纹37°内锥
Right fitting: 公制卡套式

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Diagram Pipe No. 7

4373556

Installation route: 左手柄~进回油阀

Length: 880 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

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Diagram Pipe No. 16

4221221

Installation route: 分配阀上~液压油箱

Length: 750 mm
Specification: DN6;2层纤维-4;14MPa
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. 0A

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. 12

4257291

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

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. 0

4377482

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

Length: 2,400 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. 25

4351193

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

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Diagram Pipe No. 1

4386667

Installation route: 中转接头~分配阀下

Length: 1,500 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

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Diagram Pipe No. 9

4313440

Installation route: 回转接头~回油铁管(液压油箱)

Length: 2,200 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. 0

4386670

Installation route: 行走踏板~分配阀下左

Length: 3,200 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

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Diagram Pipe No. 22A

4408485

Installation route: Left boom-cylinder lock valve → right boom-cylinder lock valveOriginal Chinese: 左大臂油缸锁止阀~右大臂油缸锁止阀

Length: 1,550 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

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Diagram Pipe No. 28

4287097

Installation route: 左手柄~中转接头

Length: 1,900 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

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Diagram Pipe No. 10

4360873

Installation route: 行走踏板~进回油阀

Length: 950 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. 29

4354368

Installation route: 左手柄~中转接头

Length: 2,150 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. 11

4289772

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

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Diagram Pipe No. 8

4373561

Installation route: 右手柄~进回油阀

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. 27

4299086

Installation route: 左手柄~中转接头

Length: 1,900 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

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Diagram Pipe No. 15

4386675

Installation route: 分配阀上~液压油箱

Length: 850 mm
Specification: DN6;2层纤维-4;14MPa
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. 43

4360873

Installation route: 分配阀左~电磁阀

Length: 950 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. 8

4333580

Installation route: 右手柄~进回油阀

Length: 1,200 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

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Diagram Pipe No. 20

4349817

Installation route: 模式转换阀~接线板(中转接头)

Length: 210 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

4373560

Installation route: 右手柄~进回油阀

Length: 1,350 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. 30

4373559

Installation route: 左手柄~中转接头

Length: 2,050 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

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Diagram Pipe No. 22

4373562

Installation route: 右手柄~中转接头

Length: 1,850 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

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Diagram Pipe No. 36A

4265832

Installation route: 大臂(破碎器)~铁管(破碎器)

Length: 1,300 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: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封

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Diagram Pipe No. 31

4319152

Installation route: 分配阀左~液压油箱

Length: 1,600 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

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Narrow the selection

Control Lever30 hoses Swivel Joint7 hoses Grease Lines7 hoses Pedal6 hoses Attachments – Breaker5 hoses Control Valve4 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 EX370-5?

The current published data covers 11 systems and 64 hose records. Systems with more listed records include: Control Lever (30 hoses), Swivel Joint (7 hoses), Grease Lines (7 hoses), Pedal (6 hoses), Attachments – Breaker (5 hoses), Control Valve (4 hoses).

What is the hose length range for Hitachi EX370-5?

Based on published records with valid lengths, the range is 210–6,660 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi EX370-5?

The most frequent raw specifications in the current published records are: DN10;1SN-6;7Mpa (21 records), DN10;1SN-06;18MPa (8 records), DN10;1SN-06;7Mpa (6 records), DN10;1层纤维-6;14MPa (6 records), DN25;4SP-16;32Mpa (4 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi EX370-5?

Each record keeps the left and right fitting descriptions separate. Current examples: 4351192: left 美制内螺纹37°内锥; right 美制内螺纹37°内锥; 4373563: left 美制内螺纹37°内锥; right 美制内螺纹37°内锥; 9163647: left American female thread, flat-face seal; right 90° light-series flange. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Hitachi EX370-5 hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 24 (4351192), Pipe No. 23 (4373563), Pipe No. 11 (9163647), Pipe No. 13 (4316009). 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