Length: 2,495 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. 4

5W-1902

Installation route: 回转接头~右支腿油缸

Length: 1,500 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. 1

8U-7244

Installation route: 大臂破碎器管

Length: 5,250 mm
Specification: DN19;4SP-12;35Mpa
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

5W-1877

Installation route: 大臂(破碎器)~过渡阀块(破碎器)

Length: 1,100 mm
Specification: DN19;4SP-12;35Mpa
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. 43

5W-8008

Installation route: 小臂油缸锁止阀

Length: 5,190 mm
Specification: DN13;2SN-8;27.5Mpa
Left fitting: 公制内螺纹24°锥带O形圈-轻型
Right fitting: 公制内螺纹24°锥带O形圈-轻型

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Diagram Pipe No. 3

5W-4940

Installation route: 大臂(附加装置)~堵头

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. 6

8U-4335

Installation route: 小臂油缸锁止阀(后段)

Length: 3,195 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. 7

5W-1917

Installation route: 大臂(破碎器)~破碎器

Length: 2,350 mm
Specification: DN25;4SP-16;28Mpa
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. 20

5W-6278

Installation route: 大臂油缸

Length: 700 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. 7

5W-4941

Installation route: 变速箱~手动阀(液压油箱旁)

Length: 1,401 mm
Specification: DN6;2SN-4;40Mpa
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. 1

8U-7245

Installation route: 大臂破碎器管

Length: 5,250 mm
Specification: DN25;2SN-16;16.5Mpa
Left fitting: 公制内螺纹24°锥带O形圈-轻型
Right fitting: 公制内螺纹24°锥带O形圈-轻型

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Diagram Pipe No. 7

5W-6847

Installation route: 大臂(附加装置)~小臂(附加装置)

Length: 1,200 mm
Specification: DN19;4SP-12;35Mpa
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. 4

5W-1902

Installation route: 回转接头~手动阀(连接回转接头)

Length: 1,500 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. 7

5W-4906

Installation route: 回转接头~左分配阀

Length: 690 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. 2

5W-4915

Installation route: 回转接头~支腿油缸

Length: 699 mm
Specification: DN10;2SN-6;33Mpa
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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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®212?

The current published data covers 10 systems and 42 hose records. Systems with more listed records include: Attachments (11 hoses), Attachments – Breaker (10 hoses), Boom Assembly (6 hoses), Swivel Joint (5 hoses), Attachments – Lock Valve (4 hoses), Control Valve (2 hoses).

What is the hose length range for Caterpillar CAT®212?

Based on published records with valid lengths, the range is 250–6,148 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®212?

The most frequent raw specifications in the current published records are: DN19;4SP-12;35Mpa (9 records), DN13;6SH-8;42Mpa (7 records), DN10;2SN-6;33Mpa (5 records), DN16;6SH-10;42Mpa (5 records), DN13;2SN-8;27.5Mpa (4 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Caterpillar CAT®212?

Each record keeps the left and right fitting descriptions separate. Current examples: 5W-8100: left 公制内螺纹24°锥带O形圈-重型; right 公制内螺纹24°锥带O形圈-重型; 5W-8008: left 公制内螺纹24°锥带O形圈-轻型; right 公制内螺纹24°锥带O形圈-轻型; 5W-7857: left 公制内螺纹24°锥带O形圈-轻型; right 公制内螺纹24°锥带O形圈-轻型. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Caterpillar CAT®212 hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 25 (5W-8100), Pipe No. 1 (5W-8008), Pipe No. 14 (5W-7857), Pipe No. 8 (5W-4939). Open a record to compare its installation position with the linked manual page.

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The question is already written for this machine or hose. Use a tool with web search enabled; treat its answer as a starting point and verify on the machine.

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See the exact question being sent

I am checking hydraulic hose repair information for "Caterpillar CAT®212 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-174-212--43415426233137343b323132/

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

Common Repair Questions

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