Hydraulic line repair data

Caterpillar CAT®225D Hose Repair Data

Coverage details
Hoses
34 records
Full specifications
34 records
Systems
11 systems
Length range
298–5,750 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. 17

2G-3738

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

Length
1,510 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. 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. 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. 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. 15

7N-3761

Installation route: 燃油喷油泵~燃油过滤器

Length
298 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. 8

6W-4640

Installation route: 液压泵~液压油过滤器

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. 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~过渡阀块(大臂油缸)

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. 5

5S-9368

Installation route: 先导泵~法兰板(液压油箱左)

Length
1,335 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

8K-4024

Installation route: 回油滤芯~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. 8

6W-7648

Installation route: 小臂油缸锁止阀

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. 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. 17

1V-9721

Installation route: 过渡阀块(回转马达左)~选择阀(分配阀右)

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~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. 17

6C-0057

Installation route: 大臂(前段)~大臂(后段)

Length
5,750 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. 2

3V-6153

Installation route: 燃油过滤器~开关阀(燃油箱)

Length
430 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. 7

8K-3209

Installation route: 小臂油缸

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. 14

6W-6303

Installation route: 先导泵~液压油箱

Length
1,450 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. 14

3V-7516

Installation route: 大臂油缸黄油管

Length
762 mm
Specification
DN5;-3;21Mpa
Left fitting
美制锥形外螺纹30°内锥
Right fitting
美制锥形外螺纹
View full repair specifications

Diagram Pipe No. 11

8K-3077

Installation route: Bucket cylinderOriginal Chinese: 铲斗油缸

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. 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. 5

7V-7377

Installation route: 左大臂油缸锁止阀~过渡阀块(大臂油缸)

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. 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. 35

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. 18

6C-0879

Installation route: 小臂破碎器截止阀右

Length
1,775 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. 16

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. 17

1V-9721

Installation route: 中转接头~过渡阀块(中转接头后)

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. 21

8K-3219

Installation route: 分配阀上(4阀芯)~分配阀(3阀芯)

Length
1,310 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. 16

8K-3220

Installation route: 分配阀上(4阀芯)~分配阀(3阀芯)

Length
1,330 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. 2

6N-8659

Installation route: 燃油过滤器~开关阀(燃油箱)

Length
394 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. 9

3V-4655

Installation route: 电磁阀(大臂下)~大臂(后段)

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

Diagram Pipe No. 15

9S-6843

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

Length
1,025 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. 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. 20

8K-0768

Installation route: 回油滤芯~法兰板(回油滤芯前)

Length
864 mm
Specification
DN51;1SN-32;2.6Mpa
Left fitting
Light-series flangeOriginal Chinese: 法兰-轻型
Right fitting
90° light-series flangeOriginal Chinese: 90°法兰-轻型
View full repair specifications

Diagram Pipe No. 27

6W-4642

Installation route: 液压泵~组合阀(液压油箱左下)

Length
1,400 mm
Specification
DN32;4SP-20;35Mpa
Left fitting
45° heavy-series flangeOriginal Chinese: 45°法兰-重型
Right fitting
45° heavy-series flangeOriginal Chinese: 45°法兰-重型
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®225D?

The current published data covers 11 systems and 34 hose records. Systems with more listed records include: Attachments (8 hoses), Control Lever (4 hoses), Hydraulic Pump (4 hoses), Attachments – Lock Valve (4 hoses), Fuel Lines (3 hoses), Control Valve (2 hoses).

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

Based on published records with valid lengths, the range is 298–5,750 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

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

The most frequent raw specifications in the current published records are: DN10;4SP-6;28Mpa (5 records), DN25;4SP-16;28Mpa (5 records), DN10;1SN-6;15.7Mpa (4 records), DN19;1SN-12;8.7Mpa (4 records), DN13;1SN-8;14Mpa (3 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Caterpillar CAT®225D?

Each record keeps the left and right fitting descriptions separate. Current examples: 2G-3738: left 美制内螺纹37°锥; right 美制内螺纹37°锥; 3V-9113: left 美制内螺纹37°锥; right 美制外螺纹37°锥; 6W-7648: 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®225D hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 17 (2G-3738), Pipe No. 1 (3V-9113), Pipe No. 8 (6W-7648), Pipe No. 5 (8R-0944). Open a record to compare its installation position with the linked manual page.

Optional cross-check

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.

See the exact question being sent
I am checking hydraulic hose repair information for "Caterpillar CAT®225D 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-174-225d--43415426233137343b32323544/

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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