Individual hose record

4I-1025 Hose Repair Specifications

Excavator · Caterpillar · CAT®312E L · Attachments

Finished length300 mm

Repair specifications

Part number
4I-1025
Diagram pipe number
2
Installation route
右踏板~中转接头(踏板)
Hose specification
DN10;-6;10.3Mpa
Finished length
300 mm
Working pressure
10.3 MPa
Left fitting
90° elbow, American female thread, flat-face sealOriginal Chinese: 90°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
Quantity
2

Same system

Related Hoses

Diagram Pipe No. 6

354-4597

Installation route: 推土铲手柄~控制阀(回转接头右)

Length
1,440 mm
Specification
DN10;-6;10.3Mpa
Left fitting
45°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. 2

111-0976

Installation route: 推土铲手柄~进回油阀

Length
1,580 mm
Specification
DN10;-6;10.3Mpa
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. 3

111-0976

Installation route: 推土铲手柄~控制阀(回转接头右)

Length
1,580 mm
Specification
DN10;-6;10.3Mpa
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. 3

4I-1671

Installation route: 减压阀(分配阀下)~过渡阀块(分配阀下)

Length
370 mm
Specification
DN10;1SN-6;10.4Mpa
Left fitting
90° elbow, American female thread, flat-face sealOriginal Chinese: 90°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. 8

356-9221

Installation route: 控制阀(回转接头右)~铁管(大臂下左)

Length
410 mm
Specification
DN13;4SP-8;28Mpa
Left fitting
90° elbow, American female thread, flat-face sealOriginal Chinese: 90°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. 5

356-9146

Installation route: 控制阀(回转接头右)~铁管(大臂下左)

Length
420 mm
Specification
DN13;4SP-8;28Mpa
Left fitting
90° elbow, American female thread, flat-face sealOriginal Chinese: 90°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. 3

4I-1878

Installation route: 右踏板~进回油阀

Length
1,380 mm
Specification
DN10;1SN-6;10.4Mpa
Left fitting
90° elbow, American female thread, flat-face sealOriginal Chinese: 90°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. 2

139-1762

Installation route: 推土铲油缸~铁管(大臂下)

Length
760 mm
Specification
DN16;4SP-10;28Mpa
Left fitting
45°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

Workshop guide

Finding the correct hydraulic hose for Caterpillar CAT®312E L Attachments

Start with the machine and route

For Caterpillar CAT®312E L 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 Caterpillar CAT®312E L 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

  • 4I-1025300 mm · DN10;-6;10.3Mpa · 右踏板~中转接头(踏板)

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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