Hydraulic line repair data

Caterpillar CAT®317B LN Attachments – Quick Coupler Hose List

Coverage details

Hoses: 14 records
Full specifications: 14 records
Systems: 1 systems
Length range: 1,000–5,450 mm

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Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 4

129-6498

Installation route: 大臂(快换)~辅助阀(大臂上)

Length: 1,045 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

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Diagram Pipe No. 2

136-7694

Installation route: 快速联轴阀~分配阀前

Length: 1,495 mm
Specification: DN10;1SN-6;15.7Mpa
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

121-2976

Installation route: 大臂快换管

Length: 5,450 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. 1

153-9856

Installation route: 小臂接头(快换)~小臂阀块(快换)

Length: 1,750 mm
Specification: DN6;2SN-4;40Mpa
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

126-6053

Installation route: 小臂接头(快换)~快换装置

Length: 1,800 mm
Specification: DN6;2SN-4;40Mpa
Left fitting: 美制内螺纹37°锥
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

173-3787

Installation route: 小臂(快换)~小臂接头(快换)

Length: 1,270 mm
Specification: DN6;2SN-4;40Mpa
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. 30

108-7497

Installation route: 大臂(快换)~

Length: 1,100 mm
Specification: DN19;6SH-12;42Mpa
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. 18

173-4298

Installation route: 大臂(快换)~小臂(快换)

Length: 1,680 mm
Specification: DN6;2SN-4;40Mpa
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. 15

9U-3430

Installation route: 快速联轴阀~三通接头(回转马达旁)

Length: 1,000 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

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Diagram Pipe No. 17

9C-8614

Installation route: 快速联轴阀~液压泵前

Length: 2,035 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

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Diagram Pipe No. 15

173-3789

Installation route: 小臂接头(快换)~小臂阀块(快换)

Length: 2,250 mm
Specification: DN6;2SN-4;40Mpa
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

126-6053

Installation route: 小臂阀块(快换)~快换装置

Length: 1,800 mm
Specification: DN6;2SN-4;40Mpa
Left fitting: 美制内螺纹37°锥
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. 16

207-2629

Installation route: 大臂快换(前段)~大臂快换(后段)

Length: 1,580 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. 1

6Y-3290

Installation route: 快速联轴阀~分配阀前

Length: 1,800 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

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Diagram Pipe No. 21

169-9724

Installation route: 小臂接头(快换)~快换装置

Length: 590 mm
Specification: DN6;2SN-4;40Mpa
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. 3

176-0571

Installation route: 大臂(快换)~小臂(快换)

Length: 1,070 mm
Specification: DN10;4SP-6;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. 21

169-9724

Installation route: 小臂阀块(快换)~快换装置

Length: 590 mm
Specification: DN6;2SN-4;40Mpa
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

134-8410

Installation route: 小臂接头(快换)~小臂阀块(快换)

Length: 1,800 mm
Specification: DN6;2SN-4;40Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 90°美制内螺纹37°锥

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Diagram Pipe No. 3

139-6006

Installation route: 大臂(快换)~小臂接头(快换)

Length: 950 mm
Specification: DN10;4SP-6;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. 1

134-8405

Installation route: 大臂(快换)~小臂(快换)

Length: 1,320 mm
Specification: DN6;2SN-4;40Mpa
Left fitting: 90°美制内螺纹37°锥
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

172-1074

Installation route: 小臂(快换)~快换装置

Length: 1,100 mm
Specification: DN6;2SN-4;40Mpa
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. 5

129-1077

Installation route: 大臂(快换)~辅助阀(大臂上)

Length: 700 mm
Specification: DN19;4SP-12;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. 16

151-0055

Installation route: 小臂接头(快换)~小臂阀块(快换)

Length: 2,300 mm
Specification: DN6;2SN-4;40Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 90°美制内螺纹37°锥

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Diagram Pipe No. 16

129-1077

Installation route: 大臂(快换)~辅助阀(大臂上)

Length: 700 mm
Specification: DN19;4SP-12;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. 1

153-6200

Installation route: 小臂(快换)~小臂接头(快换)

Length: 1,730 mm
Specification: DN6;2SN-4;40Mpa
Left fitting: 90°美制内螺纹37°锥
Right fitting: American female thread, flat-face sealOriginal Chinese: 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®317B LN Attachments – Quick Coupler?

There are 14 published records. 14 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Caterpillar CAT®317B LN Attachments – Quick Coupler?

Based on published records with valid lengths, the range is 1,000–5,450 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®317B LN Attachments – Quick Coupler?

The most frequent raw specifications in the current published records are: DN6;2SN-4;40Mpa (6 records), DN10;4SP-6;28Mpa (3 records), DN10;2SN-6;33Mpa (2 records), DN10;1SN-6;15.7Mpa (1 records), DN19;6SH-12;42Mpa (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®317B LN Attachments – Quick Coupler?

Each record keeps the left and right fitting descriptions separate. Current examples: 129-6498: left American female thread, flat-face seal; right American female thread, flat-face seal; 136-7694: left American female thread, flat-face seal; right American female thread, flat-face seal; 121-2976: 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®317B LN Attachments – Quick Coupler hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 4 (129-6498), Pipe No. 2 (136-7694), Pipe No. 6 (121-2976), Pipe No. 1 (153-9856). Open a record to compare its installation position with the linked manual page.