Hydraulic line repair data

Caterpillar CAT®318F L Attachments Hose List

Coverage details

Hoses: 24 records
Full specifications: 24 records
Systems: 1 systems
Length range: 324–3,380 mm

Current system

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Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 18

5I-4396

Installation route: 减压阀(分配阀下)~接块(分配阀左后)

Length: 400 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

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Diagram Pipe No. 5

509-3241

Installation route: 铲斗倾斜油缸管路

Length: 652 mm
Specification: DN10；2SN-6；35Mpa
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

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Diagram Pipe No. 2

4I-0800

Installation route: 踏板(附加装置)~过渡接头(驾驶室)

Length: 1,300 mm
Specification: DN10；1SN-6；10.4Mpa
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. 1

087-6643

Installation route: 大臂(附加装置)~小臂(附加装置)

Length: 2,100 mm
Specification: DN25；6SH-16；42Mpa
Left fitting: Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型

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Diagram Pipe No. 6

488-1346

Installation route: 铲斗倾斜油缸管路

Length: 490 mm
Specification: DN10；2SN-6；35Mpa
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

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Diagram Pipe No. 23

087-5765

Installation route: 减压阀(分配阀下)~减压阀(分配阀下)

Length: 570 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

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Diagram Pipe No. 3

277-0917

Installation route: 大臂(附加装置)~小臂(附加装置)

Length: 1,900 mm
Specification: DN19；6SH-12；42Mpa
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. 5

361-6841

Installation route: 大臂(附加装置)~

Length: 1,260 mm
Specification: DN25；4SP-16；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

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Diagram Pipe No. 3

4I-1878

Installation route: 踏板(附加装置)~过渡接头(驾驶室)

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

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Diagram Pipe No. 4

361-8963

Installation route: 大臂~控制阀(回转接头右)

Length: 1,610 mm
Specification: DN13；4SP-8；28Mpa
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. 8

488-1348

Installation route: 铲斗倾斜油缸管路

Length: 764 mm
Specification: DN10；2SN-6；35Mpa
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

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Diagram Pipe No. 6

363-4211

Installation route: 踏板~进回油阀

Length: 478 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

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Diagram Pipe No. 10

7Y-5088

Installation route: 踏板(附加装置)~过渡接头(驾驶室)

Length: 1,150 mm
Specification: DN10；1SN-6；10.4Mpa
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. 5

361-8966

Installation route: 大臂~控制阀(回转接头右)

Length: 1,540 mm
Specification: DN13；4SP-8；28Mpa
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. 9

498-1694

Installation route: 铲斗倾斜油缸管路

Length: 440 mm
Specification: DN10；2SN-6；35Mpa
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. 7

488-1347

Installation route: 铲斗倾斜油缸管路

Length: 780 mm
Specification: DN10；2SN-6；35Mpa
Left fitting: 90° elbow, American female thread, flat-face sealOriginal Chinese: 90°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. 4

509-3240

Installation route: 铲斗倾斜油缸管路

Length: 728 mm
Specification: DN10；2SN-6；35Mpa
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. 21

087-4531

Installation route: 减压阀(分配阀下)~接块(分配阀左后)

Length: 600 mm
Specification: DN10；1SN-6；10.4Mpa
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. 4

361-6842

Installation route: 踏板~分配阀上

Length: 3,380 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: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封

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Diagram Pipe No. 5

361-6844

Installation route: 踏板~进回油阀

Length: 324 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

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Diagram Pipe No. 1

361-6843

Installation route: 小臂(附加装置)~手动阀

Length: 1,850 mm
Specification: DN25；4SP-16；28Mpa
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. 6

509-4747

Installation route: 铲斗倾斜油缸管路

Length: 784 mm
Specification: DN10；2SN-6；35Mpa
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. 18

325-8842

Installation route: 踏板(附加装置)~中转接头(踏板)

Length: 330 mm
Specification: DN10；1SN-6；10.4Mpa
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. 5

488-1345

Installation route: 铲斗倾斜油缸管路

Length: 464 mm
Specification: DN10；2SN-6；35Mpa
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

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Workshop guide

Finding the correct hydraulic hose for Caterpillar CAT®318F L Attachments

Start with the machine and route

For Caterpillar CAT®318F 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®318F 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

5I-4396400 mm · DN10；1SN-6；10.4Mpa · 减压阀(分配阀下)~接块(分配阀左后)
509-3241652 mm · DN10；2SN-6；35Mpa · 铲斗倾斜油缸管路
4I-08001,300 mm · DN10；1SN-6；10.4Mpa · 踏板(附加装置)~过渡接头(驾驶室)

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.

Based on current published data

Common Repair Questions

Questions appear only when a published record or linked PDF page provides the answer.

How many hoses are currently listed for Caterpillar CAT®318F L Attachments?

There are 24 published records. 24 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Caterpillar CAT®318F L Attachments?

Based on published records with valid lengths, the range is 324–3,380 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®318F L Attachments?

The most frequent raw specifications in the current published records are: DN10；2SN-6；35Mpa (8 records), DN10；1SN-6；10.4Mpa (6 records), DN10；-6；10.3Mpa (4 records), DN13；4SP-8；28Mpa (2 records), DN25；4SP-16；28Mpa (2 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Caterpillar CAT®318F L Attachments?

Each record keeps the left and right fitting descriptions separate. Current examples: 5I-4396: left 90° elbow, American female thread, flat-face seal; right American female thread, flat-face seal; 509-3241: left 45°美制内螺纹平面密封; right American female thread, flat-face seal; 4I-0800: left American female thread, flat-face seal; right 90° elbow, American female thread, flat-face seal. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Caterpillar CAT®318F L Attachments hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 18 (5I-4396), Pipe No. 5 (509-3241), Pipe No. 2 (4I-0800), Pipe No. 1 (087-6643). Open a record to compare its installation position with the linked manual page.