Individual hose record

4440431 Hose Repair Specifications

Excavator · Hitachi · ZX120-3 · Attachments

Finished length1,950 mm

Repair specifications

Part number
4440431
Diagram pipe number
3
Installation route
回转接头~推土铲油缸
Hose specification
DN10;2SN-6;34.5MPa
Finished length
1,950 mm
Working pressure
34.5 MPa
Left fitting
美制内螺纹37°内锥
Right fitting
美制内螺纹37°内锥
Quantity
1

Same system

Related Hoses

Diagram Pipe No. 0

4440410

Installation route: 回转接头~推土铲油缸

Length
1,900 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
View full repair specifications

Diagram Pipe No. 1

4440419

Installation route: 回转接头~推土铲油缸

Length
1,900 mm
Specification
DN10;2SN-6;34.5MPa
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. 28

4685299

Installation route: 分配阀下~过渡阀块(推土铲)

Length
1,950 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. 32

9292465

Installation route: 过渡阀块(控制阀(分节大臂))~中转接头

Length
1,850 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. 39

4269839

Installation route: 推土铲手柄~过渡阀块(推土铲)

Length
800 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. 36

4678020

Installation route: 分配阀左~液压油箱

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. 46

4462428

Installation route: 回转马达~过渡阀块(推土铲)

Length
500 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. 18

4478281

Installation route: 分配阀上~控制阀(推土铲)

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

Workshop guide

Finding the correct hydraulic hose for Hitachi ZX120-3 Attachments

Start with the machine and route

For Hitachi ZX120-3 Attachments, identify the exact model and hydraulic system on the machine first. A part number or diagram pipe number is the fastest way to narrow a replacement hose; if neither is visible, compare the installation route and the existing hose.

See all Hitachi ZX120-3 systems

Read the dimensions before cutting

Check whether a listed dimension is finished assembly length, hose-only length, or cut length. These are not interchangeable. Confirm hose specification and pressure rating, then compare both ends separately: thread, sealing seat, size, angle, and orientation.

Records to compare

  • 44404311,950 mm · DN10;2SN-6;34.5MPa · 回转接头~推土铲油缸

Use the drawing as a location check

Where an installation drawing or manual figure is available, match its callout to the part number and physical route. A hydraulic circuit diagram explains connections but does not show the exact routing of a hose on the machine. Take the old hose or clear end-fitting photographs to the workshop if any dimension is missing.

For reference only. Confirm the actual hose before fabrication.

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