Hydraulic line repair data

Caterpillar CAT®312C Attachments Hose List

Coverage details

Hoses: 9 records
Full specifications: 9 records
Systems: 1 systems
Length range: 800–3,200 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. 4

087-6584

Installation route: 左踏板~分配阀

Length: 3,200 mm
Specification: DN10;-6;10.3Mpa
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

109-6072

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

Length: 1,090 mm
Specification: DN25;6SH-16;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. 9

202-0448

Installation route: 过渡接头(大臂上)~过渡接头(回转接头后左)

Length: 2,225 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. 29

087-5759

Installation route: 先导阀(液压泵后上)

Length: 800 mm
Specification: DN10;1SN-6;10.4Mpa
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. 4

227-9662

Installation route: 大臂(附加装置)~分配阀前

Length: 995 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. 7

201-7588

Installation route: 液压油散热器~回油阀块(分配阀后)

Length: 1,595 mm
Specification: DN32;1SN-20;4.3Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: Light-series flangeOriginal Chinese: 法兰-轻型

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Diagram Pipe No. 8

202-0447

Installation route: 过渡接头(大臂上)~过渡接头(回转接头后左)

Length: 1,235 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. 4

190-8614

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

Length: 1,000 mm
Specification: DN25;6SH-16;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. 4

197-8203

Installation route: 大臂(附加装置)~分配阀前

Length: 1,095 mm
Specification: DN19;4SP-12;35Mpa
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

196-0737

Installation route: 控制阀(回转接头右)~过渡接头(回转接头左)

Length: 520 mm
Specification: DN13;4SP-8;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

7I-1105

Installation route: 左踏板~分配阀

Length: 3,250 mm
Specification: DN10;-6;10.3Mpa
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. 93

087-4411

Installation route: 减压阀(分配阀下)~梭阀(分配阀下)

Length: 450 mm
Specification: DN10;1SN-6;10.4Mpa
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

128-7471

Installation route: 回油铁管~过渡接头(回转马达右)

Length: 730 mm
Specification: DN25;1SN-16;7Mpa
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. 2

176-9090

Installation route: 大臂前段(附加装置)~大臂后段(附加装置)

Length: 1,295 mm
Specification: DN25;6SH-16;42Mpa
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. 26

4I-0995

Installation route: 过渡阀块(分配阀下)~

Length: 2,000 mm
Specification: DN10;-6;10.3Mpa
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

187-6900

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

Length: 900 mm
Specification: DN13;4SP-8;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. 1

135-1251

Installation route: 回油铁管~过渡接头(回转马达右)

Length: 873 mm
Specification: DN25;1SN-16;7Mpa
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. 3

232-4363

Installation route: 回油铁管~过渡接头(回转马达左)

Length: 742 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: 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. 22

187-6900

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

Length: 900 mm
Specification: DN13;4SP-8;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. 2

104-8832

Installation route: 先导阀(分配阀下)~

Length: 1,900 mm
Specification: DN10;6SH-6;42Mpa
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. 3

210-7276

Installation route: 大臂(附加装置)~小臂(附加装置)

Length: 1,655 mm
Specification: DN25;6SH-16;42Mpa
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. 8

196-0737

Installation route: 控制阀(回转接头右)~过渡接头(回转接头前)

Length: 520 mm
Specification: DN13;4SP-8;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. 19

173-4739

Installation route: 液压油散热器~回油阀块(分配阀后)

Length: 980 mm
Specification: DN32;1SN-20;4.3Mpa
Left fitting: 90° light-series flangeOriginal Chinese: 90°法兰-轻型
Right fitting: Light-series flangeOriginal Chinese: 法兰-轻型

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Diagram Pipe No. 2

196-0733

Installation route: 控制阀(回转接头右)~过渡接头(回转接头前)

Length: 900 mm
Specification: DN13;4SP-8;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

8W-4008

Installation route: 过渡阀块(分配阀下)~过渡接头(回转接头前)

Length: 1,050 mm
Specification: DN10;1SN-6;15.7Mpa
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

4I-1025

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

Length: 300 mm
Specification: DN10;-6;10.3Mpa
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. 6

201-7587

Installation route: 液压油散热器~回油阀块(分配阀后)

Length: 920 mm
Specification: DN32;1SN-20;4.3Mpa
Left fitting: 90° elbow, American female thread, flat-face sealOriginal Chinese: 90°美制内螺纹平面密封
Right fitting: Light-series flangeOriginal Chinese: 法兰-轻型

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Diagram Pipe No. 1

087-5780

Installation route: 左踏板~分配阀上

Length: 2,550 mm
Specification: DN10;-6;10.3Mpa
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. 48

199-1866

Installation route: 先导阀(液压泵后上)

Length: 800 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

102-1622

Installation route: 回油铁管~过渡接头(回转马达右)

Length: 792 mm
Specification: DN25;1SN-16;7Mpa
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. 1

133-3664

Installation route: 大臂(附加装置)~小臂(附加装置)

Length: 1,655 mm
Specification: DN25;4SP-16;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. 2

196-0733

Installation route: 控制阀(回转接头右)~过渡接头(回转接头左)

Length: 900 mm
Specification: DN13;4SP-8;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. 38

4I-1671

Installation route: 过渡阀块(液压油箱后)~

Length: 370 mm
Specification: DN10;1SN-6;10.4Mpa
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. 10

225-7624

Installation route: 过渡阀块(分节油缸左)~过渡阀块(分节油缸右)

Length: 584 mm
Specification: DN10;1SN-6;15.7Mpa
Left fitting: 45°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

4I-0995

Installation route: 过渡阀块(分配阀下)~

Length: 2,000 mm
Specification: DN10;-6;10.3Mpa
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

087-4432

Installation route: 液压油散热器~回油阀块(分配阀后)

Length: 940 mm
Specification: DN32;1SN-20;4.3Mpa
Left fitting: 90° light-series flangeOriginal Chinese: 90°法兰-轻型
Right fitting: Light-series flangeOriginal Chinese: 法兰-轻型

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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®312C Attachments?

There are 9 published records. 9 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Caterpillar CAT®312C Attachments?

Based on published records with valid lengths, the range is 800–3,200 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®312C Attachments?

The most frequent raw specifications in the current published records are: DN10;1SN-6;15.7Mpa (2 records), DN25;6SH-16;42Mpa (2 records), DN10;-6;10.3Mpa (1 records), DN10;1SN-6;10.4Mpa (1 records), DN19;4SP-12;35Mpa (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®312C Attachments?

Each record keeps the left and right fitting descriptions separate. Current examples: 087-6584: left American female thread, flat-face seal; right American female thread, flat-face seal; 109-6072: left American female thread, flat-face seal; right American female thread, flat-face seal; 202-0448: 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®312C Attachments hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 4 (087-6584), Pipe No. 10 (109-6072), Pipe No. 9 (202-0448), Pipe No. 29 (087-5759). Open a record to compare its installation position with the linked manual page.