Hydraulic line repair data

Caterpillar CAT®307-A Attachments Hose List

Coverage details

Hoses: 8 records
Full specifications: 8 records
Systems: 1 systems
Length range: 860–2,300 mm

Current system

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Use the number on the diagram, a part number, connection point, length, hose size, or fitting.

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Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 1

7I-0082

Installation route: 大臂(附加装置)~小臂(附加装置)

Length: 970 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. 6

111-6518

Installation route: 大臂(附加装置)~分配阀前

Length: 1,100 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: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封

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Diagram Pipe No. 1

7I-0079

Installation route: 大臂(附加装置)~小臂(附加装置)

Length: 1,370 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. 8

108-9019

Installation route: 大臂(附加装置)~小臂(附加装置)

Length: 2,230 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: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封

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Diagram Pipe No. 11

108-7562

Installation route: 大臂(附加装置)~过渡接头(回转马达右)

Length: 1,100 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

108-7565

Installation route: 大臂(附加装置)~过渡接头(回转马达右)

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. 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. 7

111-6511

Installation route: 大臂(附加装置)~分配阀前

Length: 860 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: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封

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Diagram Pipe No. 7

108-7568

Installation route: 过渡阀块(分配阀右)~过渡接头(回转马达上)

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. 26

107-1489

Installation route: 推土铲铁管~推土铲油缸

Length: 410 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: 45°美制内螺纹平面密封

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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)~回油铁管

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. 1

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. 7

108-9018

Installation route: 小臂摆动油缸

Length: 930 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: 45°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-A Attachments?

There are 8 published records. 8 include a length, both end fittings, and a part number or diagram pipe number.

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

Based on published records with valid lengths, the range is 860–2,300 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-A Attachments?

The most frequent raw specifications in the current published records are: DN16;4SP-10;28Mpa (4 records), DN13;4SP-8;28Mpa (3 records), DN6;-4;10.3Mpa (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-A Attachments?

Each record keeps the left and right fitting descriptions separate. Current examples: 7I-0082: left American female thread, flat-face seal; right American female thread, flat-face seal; 111-6518: left American female thread, flat-face seal; right American female thread, flat-face seal; 7I-0079: 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-A Attachments hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 1 (7I-0082), Pipe No. 6 (111-6518), Pipe No. 1 (7I-0079), Pipe No. 8 (108-9019). Open a record to compare its installation position with the linked manual page.