Hydraulic line repair data

Caterpillar CAT®225B Hose Repair Data

Coverage details
Hoses
40 records
Full specifications
40 records
Systems
11 systems
Length range
275–3,450 mm

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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. 1

8K-4022

Installation route: 液压油过滤器~液压油散热器

Length
275 mm
Specification
DN25;2层纤维+螺旋钢丝-16;1.7Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 11

6W-5415

Installation route: 先导阀(分配阀后)~过渡阀块(分配阀上)

Length
415 mm
Specification
DN10;4SP-6;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
View full repair specifications

Diagram Pipe No. 1

8K-2653

Installation route: 大臂左1/左2/左3/左4(规格2)

Length
2,110 mm
Specification
DN32;4SP-20;35Mpa
Left fitting
Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting
Heavy-series flangeOriginal Chinese: 法兰-重型
View full repair specifications

Diagram Pipe No. 9

8R-0944

Installation route: 左手柄~中转接头

Length
687 mm
Specification
DN10;1SN-6;15.7Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 25

7V-0719

Installation route: 控制阀(发动机前)~接线板(回转马达右)

Length
1,360 mm
Specification
DN13;4SP-8;28Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 8

8K-4024

Installation route: 液压油过滤器~液压油散热器

Length
558 mm
Specification
DN25;1SN-16;7Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 5

5S-9348

Installation route: 先导泵~法兰板(液压油箱左)

Length
1,385 mm
Specification
DN25;4SP-16;28Mpa
Left fitting
Light-series flangeOriginal Chinese: 法兰-轻型
Right fitting
Light-series flangeOriginal Chinese: 法兰-轻型
View full repair specifications

Diagram Pipe No. 1

8R-0944

Installation route: 电磁阀(液压油箱后)~安全阀(液压油箱后)

Length
687 mm
Specification
DN10;1SN-6;15.7Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 5

3V-8853

Installation route: 分配阀~选择阀~

Length
795 mm
Specification
DN13;4SP-8;28Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 14

6W-7648

Installation route: 小臂油缸锁止阀(后段)

Length
2,420 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
American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
View full repair specifications

Diagram Pipe No. 10

3V-8853

Installation route: 分配阀~选择阀

Length
795 mm
Specification
DN13;4SP-8;28Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 5

9N-5613

Installation route: 分配阀~液压油箱

Length
1,100 mm
Specification
DN8;-5;10.3Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 7

5T-4525

Installation route: 电磁阀(分配阀右下)~安全阀(回转马达后)

Length
522 mm
Specification
DN10;4SP-6;28Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 23

7V-7376

Installation route: 左大臂油缸锁止阀~大臂油缸锁止阀接头总成

Length
411 mm
Specification
DN13;1SN-8;14Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 6

8K-0800

Installation route: 先导阀(中转接头后)~先导排油箱

Length
894 mm
Specification
DN13;1SN-8;14Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 8

6W-7648

Installation route: 小臂油缸锁止阀~大臂(中段)

Length
2,420 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
American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
View full repair specifications

Diagram Pipe No. 23

6W-2445

Installation route: 回转接头~制动器阀

Length
1,850 mm
Specification
DN13;1SN-8;14Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 13

6W-7648

Installation route: 大臂(中段)~大臂(后段)

Length
2,420 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
American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
View full repair specifications

Diagram Pipe No. 21

2V-8571

Installation route: 回转马达~电磁阀(分配阀右下)

Length
651 mm
Specification
DN13;1SN-8;14Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 5

7V-7377

Installation route: 左大臂油缸锁止阀~大臂油缸锁止阀接头总成

Length
402 mm
Specification
DN10;2SN-6;33Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 1

3V-9113

Installation route: 大臂(前段)~大臂(后段)

Length
3,450 mm
Specification
DN19;1SN-12;8.7Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制外螺纹37°锥
View full repair specifications

Diagram Pipe No. 30

8K-2651

Installation route: 小臂油缸(规格2)

Length
1,720 mm
Specification
DN32;4SP-20;35Mpa
Left fitting
Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting
Heavy-series flangeOriginal Chinese: 法兰-重型
View full repair specifications

Diagram Pipe No. 39

7V-1038

Installation route: 过渡阀块(驾驶室前)~接线板(驾驶室中)

Length
279 mm
Specification
DN10;1SN-6;15.7Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 5

8R-0944

Installation route: 右手柄~中转接头

Length
687 mm
Specification
DN10;1SN-6;15.7Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 7

8K-3209

Installation route: 小臂油缸(规格1)

Length
915 mm
Specification
DN32;4SP-20;35Mpa
Left fitting
Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting
Heavy-series flangeOriginal Chinese: 法兰-重型
View full repair specifications

Diagram Pipe No. 9

2V-8572

Installation route: 左手柄~中转接头

Length
687 mm
Specification
DN10;1SN-6;15.7Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 11

1V-9721

Installation route: 中转接头~阀块

Length
762 mm
Specification
DN10;1SN-6;10.4Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 5

2V-8571

Installation route: 回转马达~回油滤芯

Length
651 mm
Specification
DN13;1SN-8;14Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 2

7V-4250

Installation route: 中转接头~过渡阀块(回转马达左)

Length
1,010 mm
Specification
DN19;1SN-12;8.7Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 4

6W-4640

Installation route: 控制阀(发动机前)~驾驶室(右手柄后)

Length
794 mm
Specification
DN19;1SN-12;8.7Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 14

2V-8679

Installation route: 中转接头~过渡阀块(中转接头后)

Length
794 mm
Specification
DN10;1SN-6;15.7Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 11

8K-3077

Installation route: 铲斗油缸(规格1)

Length
1,475 mm
Specification
DN25;4SP-16;35Mpa
Left fitting
Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting
Heavy-series flangeOriginal Chinese: 法兰-重型
View full repair specifications

Diagram Pipe No. 18

3T-3848

Installation route: 燃油泵~燃油箱

Length
330 mm
Specification
DN6;1SN-4;19.2Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 62

3V-8853

Installation route: 分配阀上~控制阀

Length
795 mm
Specification
DN13;4SP-8;28Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 5

2V-8572

Installation route: 右手柄~中转接头

Length
687 mm
Specification
DN10;1SN-6;15.7Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 9

3V-4655

Installation route: 大臂(附加装置)~控制阀(旋转器)

Length
1,900 mm
Specification
DN19;1SN-12;8.7Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

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®225B?

The current published data covers 11 systems and 40 hose records. Systems with more listed records include: Attachments (8 hoses), Control Lever (7 hoses), Attachments – Lock Valve (5 hoses), Control Valve (4 hoses), Boom Assembly (4 hoses), Solenoid Valve (3 hoses).

What is the hose length range for Caterpillar CAT®225B?

Based on published records with valid lengths, the range is 275–3,450 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®225B?

The most frequent raw specifications in the current published records are: DN10;1SN-6;15.7Mpa (9 records), DN13;1SN-8;14Mpa (5 records), DN13;4SP-8;28Mpa (5 records), DN25;4SP-16;28Mpa (5 records), DN19;1SN-12;8.7Mpa (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®225B?

Each record keeps the left and right fitting descriptions separate. Current examples: 8K-4022: left 美制内螺纹37°锥; right 美制内螺纹37°锥; 6W-5415: left American female thread, flat-face seal; right American female thread, flat-face seal; 8K-2653: left Heavy-series flange; right Heavy-series flange. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Caterpillar CAT®225B hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 1 (8K-4022), Pipe No. 11 (6W-5415), Pipe No. 1 (8K-2653), Pipe No. 9 (8R-0944). Open a record to compare its installation position with the linked manual page.

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Ask an AI search tool to check this repair data

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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I am checking hydraulic hose repair information for "Caterpillar CAT®225B 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-174-225b--43415426233137343b32323542/

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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