Hydraulic line repair data

Caterpillar CAT®206B Hose Repair Data

Coverage details

Hoses: 26 records
Full specifications: 26 records
Systems: 6 systems
Length range: 457–4,252 mm

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AttachmentsBoom AssemblyAttachments – BreakerAttachments – Lock ValveSwivel Joint

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Hose repair details

Hose Length and Fitting List

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

Diagram Pipe No. 14

8U-5875

Installation route: 推土铲手柄~分配阀

Length: 2,156 mm
Specification: DN8;-5;17.5Mpa
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. 18

8U-6521

Installation route: 分配阀~回油阀块

Length: 1,697 mm
Specification: DN8;-5;17.5Mpa
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. 1

8U-4540

Installation route: 回转接头~前传动轴

Length: 2,400 mm
Specification: DN10;2SN-6;33Mpa
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. 11

8U-6190

Installation route: 分节油缸管路

Length: 1,201 mm
Specification: DN10;2SN-6;33Mpa
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

8U-4534

Installation route: 推土铲油缸~过渡接头(推土铲油缸)

Length: 820 mm
Specification: DN10;6SH-6;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

8U-6492

Installation route: 大臂(破碎器)~破碎器

Length: 2,350 mm
Specification: DN19;4SP-12;35Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: Heavy-series flangeOriginal Chinese: 法兰-重型

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Diagram Pipe No. 2

5W-4940

Installation route: 翻盖式铲斗管路

Length: 1,901 mm
Specification: DN13;6SH-8;42Mpa
Left fitting: 公制内螺纹24°锥带O形圈-重型
Right fitting: 公制内螺纹24°锥带O形圈-重型

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Diagram Pipe No. 5

8U-5399

Installation route: 大臂油缸锁止阀接头总成~液压油箱

Length: 1,652 mm
Specification: DN19;2SN-12;21.5Mpa
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. 17

8U-6190

Installation route: 小臂油缸(后段)(分节油缸规格)

Length: 1,201 mm
Specification: DN10;2SN-6;33Mpa
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. 15

8U-5383

Installation route: 大臂铁管~阀块

Length: 985 mm
Specification: DN6;2SN-4;40Mpa
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. 1

8U-6400

Installation route: 小臂油缸锁止阀~小臂油缸前置阀块

Length: 4,252 mm
Specification: DN16;2SN-10;25Mpa
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. 34

8U-7090

Installation route: 调速器油缸~回油阀块

Length: 1,397 mm
Specification: DN8;-5;17.5Mpa
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. 10

8U-4541

Installation route: 回转接头~前桥支腿油缸

Length: 1,200 mm
Specification: DN10;2SN-6;33Mpa
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. 23

8U-5383

Installation route: 大臂油缸锁止阀

Length: 985 mm
Specification: DN6;2SN-4;40Mpa
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

8U-6492

Installation route: 大臂(破碎器)~破碎器

Length: 2,350 mm
Specification: DN19;4SP-12;35Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: Heavy-series flangeOriginal Chinese: 法兰-重型

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Diagram Pipe No. 18

8U-4506

Installation route: 回转接头~后桥

Length: 590 mm
Specification: DN13;2SN-8;27.5Mpa
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. 10

8U-9186

Installation route: 大臂(破碎器)~破碎器

Length: 2,350 mm
Specification: DN32;2SN-20;12.5Mpa
Left fitting: Light-series flangeOriginal Chinese: 法兰-轻型
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. 1

8U-5396

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: 457 mm
Specification: DN6;2SN-4;40Mpa
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. 22

8U-5383

Installation route: 大臂油缸锁止阀~阀块

Length: 985 mm
Specification: DN6;2SN-4;40Mpa
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. 1

8U-6217

Installation route: 小臂破碎器截止阀

Length: 1,200 mm
Specification: DN19;4SP-12;35Mpa
Left fitting: Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting: Heavy-series flangeOriginal Chinese: 法兰-重型

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Diagram Pipe No. 11

8U-7521

Installation route: 分节油缸管路

Length: 1,201 mm
Specification: DN10;2SN-6;33Mpa
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

8U-9187

Installation route: 大臂(破碎器)~破碎器

Length: 2,350 mm
Specification: DN32;2SN-20;12.5Mpa
Left fitting: 公制内螺纹24°锥带O形圈-轻型
Right fitting: Light-series flangeOriginal Chinese: 法兰-轻型

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Diagram Pipe No. 5

8U-1659

Installation route: 回转接头~后桥

Length: 1,705 mm
Specification: DN10;2SN-6;33Mpa
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. 1

5W-4939

Installation route: 翻盖式铲斗管路

Length: 1,900 mm
Specification: DN16;6SH-10;42Mpa
Left fitting: 公制内螺纹24°锥带O形圈-重型
Right fitting: 公制内螺纹24°锥带O形圈-重型

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Diagram Pipe No. 17

8U-7521

Installation route: 小臂油缸(后段)(分节油缸规格)

Length: 1,201 mm
Specification: DN10;2SN-6;33Mpa
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. 1

8U-6184

Installation route: 大臂(前段)~大臂(后段)

Length: 960 mm
Specification: DN16;6SH-10;42Mpa
Left fitting: Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting: Heavy-series flangeOriginal Chinese: 法兰-重型

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Diagram Pipe No. 9

8U-7095

Installation route: 分配阀单向阀~回油阀块

Length: 1,244 mm
Specification: DN10;1SN-6;15.7Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 45°美制内螺纹平面密封

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Diagram Pipe No. 14

8U-4701

Installation route: 分配阀~回油阀块

Length: 1,997 mm
Specification: DN8;-5;17.5Mpa
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. 19

8U-0123

Installation route: 回转马达~电磁阀

Length: 2,210 mm
Specification: DN8;-5;17.5Mpa
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. 3

8U-4537

Installation route: 回转接头~回转接头前置接头

Length: 895 mm
Specification: DN13;6SH-8;42Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 45°美制内螺纹平面密封

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Diagram Pipe No. 3

8U-5914

Installation route: 支腿油缸管路

Length: 720 mm
Specification: DN10;6SH-6;42Mpa
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

8U-6183

Installation route: 分节油缸管路

Length: 818 mm
Specification: DN19;4SP-12;35Mpa
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. 5

8U-1072

Installation route: 转速控制阀管路

Length: 667 mm
Specification: DN6;2SN-4;40Mpa
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

8U-0121

Installation route: 液压油箱~回油阀块

Length: 360 mm
Specification: DN8;-5;17.5Mpa
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. 22

8U-6166

Installation route: 回转马达~阀块

Length: 346 mm
Specification: DN8;-5;17.5Mpa
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. 9

8U-4504

Installation route: 液压泵~液压油箱

Length: 500 mm
Specification: DN10;2SN-6;33Mpa
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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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 Caterpillar CAT®206B?

The current published data covers 6 systems and 26 hose records. Systems with more listed records include: Attachments (6 hoses), Boom Assembly (5 hoses), Attachments – Breaker (5 hoses), Attachments – Lock Valve (5 hoses), Swivel Joint (4 hoses).

What is the hose length range for Caterpillar CAT®206B?

Based on published records with valid lengths, the range is 457–4,252 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®206B?

The most frequent raw specifications in the current published records are: DN10;2SN-6;33Mpa (7 records), DN6;2SN-4;40Mpa (4 records), DN19;4SP-12;35Mpa (3 records), DN8;-5;17.5Mpa (3 records), DN16;6SH-10;42Mpa (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®206B?

Each record keeps the left and right fitting descriptions separate. Current examples: 8U-5875: left American female thread, flat-face seal; right American female thread, flat-face seal; 8U-6521: left American female thread, flat-face seal; right American female thread, flat-face seal; 8U-4540: left American female thread, flat-face seal; right 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®206B hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 14 (8U-5875), Pipe No. 18 (8U-6521), Pipe No. 1 (8U-4540), Pipe No. 11 (8U-6190). Open a record to compare its installation position with the linked manual page.

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I am checking hydraulic hose repair information for "Caterpillar CAT®206B Hose Repair Data". Use web search and cite a source for every factual point. Compare this HoseSeek page with manufacturer manuals and reliable parts documentation: https://www.hoseseek.com/machines/caterpillar/cat-174-206b--43415426233137343b32303642/

Verify, where applicable:
1. Exact machine model and any serial-number range.
2. Hydraulic system and installation route.
3. Hose part number and diagram pipe number.
4. Finished length, hose specification, and pressure rating.
5. Both end fittings, including thread, sealing seat, size, and angle.
6. Installation-diagram position and routing.

State explicitly what you could not verify. Do not infer a missing dimension or fitting. End with a short on-machine checklist for a hose repair technician.

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Hose Length and Fitting List

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