Hydraulic line repair data

Caterpillar CAT®307 Attachments Hose List

Coverage details

Hoses: 5 records
Full specifications: 5 records
Systems: 1 systems
Length range: 759–2,700 mm

Current system

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Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 23

136-5827

Installation route: 大臂(附加装置)~分配阀前

Length: 1,020 mm
Specification: DN16;4SP-10;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. 10

111-6505

Installation route: 右踏板~分配阀上

Length: 2,300 mm
Specification: DN6;-4;10.3Mpa
Left fitting: 美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 4

111-6691

Installation route: 大臂(附加装置)~过渡接头(回转接头右前)

Length: 759 mm
Specification: DN13;1SN-8;14Mpa
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. 24

108-7565

Installation route: 大臂(附加装置)~分配阀前

Length: 860 mm
Specification: DN16;4SP-10;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. 19

5T-4381

Installation route: 右踏板~电磁阀(液压油箱后)

Length: 2,700 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

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Diagram Pipe No. 35

107-1519

Installation route: 控制阀(液压泵下)

Length: 404 mm
Specification: DN16;1SN-10;10.5Mpa
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. 26

107-1451

Installation route: 过渡阀块(分配阀右)~铁管

Length: 501 mm
Specification: DN25;1SN-16;7Mpa
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. 26

107-1415

Installation route: 安全阀(大臂上)~大臂铁管

Length: 760 mm
Specification: DN16;4SP-10;28Mpa
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. 9

7I-8290

Installation route: 阀块(大臂上)~大臂铁管

Length: 820 mm
Specification: DN16;4SP-10;28Mpa
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. 25

127-9228

Installation route: 手动阀(大臂上)~大臂铁管

Length: 920 mm
Specification: DN16;4SP-10;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. 27

122-4730

Installation route: 手动阀(大臂上)~大臂铁管

Length: 600 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. 27

127-9228

Installation route: 安全阀(大臂上)~大臂铁管

Length: 920 mm
Specification: DN16;4SP-10;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. 26

114-8421

Installation route: 推土铲油缸~

Length: 630 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: 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. 23

111-6508

Installation route: 手动阀(分配阀前)~过渡阀块(分配阀后)

Length: 308 mm
Specification: DN16;1SN-10;10.5Mpa
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. 7

126-6399

Installation route: 大臂(附加装置)~过渡接头(分配阀上)

Length: 1,680 mm
Specification: DN25;1SN-16;7Mpa
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. 7

108-7568

Installation route: 大臂(附加装置)~过渡阀块(分配阀上)

Length: 476 mm
Specification: DN16;1SN-10;10.5Mpa
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. 13

107-1482

Installation route: 推土铲油缸~

Length: 450 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: 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

107-1415

Installation route: 阀块(大臂上)~大臂铁管

Length: 760 mm
Specification: DN16;4SP-10;28Mpa
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. 22

126-6399

Installation route: 大臂(附加装置)~过渡阀块(分配阀上)

Length: 1,680 mm
Specification: DN25;1SN-16;7Mpa
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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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®307 Attachments?

There are 5 published records. 5 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Caterpillar CAT®307 Attachments?

Based on published records with valid lengths, the range is 759–2,700 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®307 Attachments?

The most frequent raw specifications in the current published records are: DN16;4SP-10;28Mpa (2 records), DN13;1SN-8;14Mpa (1 records), DN6;-4;10.3Mpa (1 records), DN6;1SN-4;19.2Mpa (1 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Caterpillar CAT®307 Attachments?

Each record keeps the left and right fitting descriptions separate. Current examples: 136-5827: left American female thread, flat-face seal; right American female thread, flat-face seal; 111-6505: left 美制内螺纹37°锥; right 美制内螺纹37°锥; 111-6691: 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®307 Attachments hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 23 (136-5827), Pipe No. 10 (111-6505), Pipe No. 4 (111-6691), Pipe No. 24 (108-7565). Open a record to compare its installation position with the linked manual page.