Hydraulic line repair data

Caterpillar CAT®312E Control Valve Hose List

Coverage details

Hoses: 4 records
Full specifications: 4 records
Systems: 1 systems
Length range: 630–2,300 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. 9

204-8543

Installation route: 分配阀下左~电磁阀(分配阀后下)

Length: 630 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. 5

087-5761

Installation route: 分配阀上右~电磁阀(电磁阀后下)

Length: 1,250 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

087-4503

Installation route: 分配阀下右~电磁阀(分配阀后下)

Length: 850 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. 3

4I-3994

Installation route: 分配阀上右~分配阀下右

Length: 2,300 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. 6

087-4402

Installation route: 分配阀下左~过渡阀块(分配阀下)

Length: 480 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. 2

289-5474

Installation route: 分配阀下~过渡阀块(分配阀下)

Length: 630 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. 4

4I-1760

Installation route: 分配阀上右~分配阀上右

Length: 500 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. 23

368-1621

Installation route: 分配阀右~电磁阀(液压泵后下)

Length: 1,760 mm
Specification: DN10;6SH-6;42Mpa
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

087-5772

Installation route: 分配阀上右~电磁阀(分配阀下)

Length: 1,000 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. 11

368-1536

Installation route: 分配阀右~压力开关阀(液压泵上)

Length: 2,320 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. 6

419-0619

Installation route: 分配阀右~回转马达

Length: 500 mm
Specification: DN19;1SN-12;8.7Mpa
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. 42

337-2713

Installation route: 分配阀上右~蓄能器电磁阀(液压泵后下)

Length: 2,700 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. 24

111-0985

Installation route: 分配阀下左~减压阀(分配阀下)

Length: 390 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

428-8331

Installation route: 分配阀前~回转马达

Length: 790 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: 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. 2

4I-0800

Installation route: 分配阀上左~分配阀下左

Length: 1,300 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. 22

108-7313

Installation route: 分配阀下左~蓄能器电磁阀(液压泵后下)

Length: 1,900 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. 3

4I-1671

Installation route: 分配阀下右~过渡阀块(分配阀下)

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. 50

368-0374

Installation route: 分配阀下右~电磁阀(分配阀下)

Length: 980 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. 14

361-9023

Installation route: 分配阀上左~电磁阀(分配阀后下)

Length: 950 mm
Specification: DN10;1SN-6;10.4Mpa
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. 5

374-0074

Installation route: 分配阀下~过渡阀块(分配阀下)

Length: 370 mm
Specification: DN10;1SN-6;10.4Mpa
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. 38

278-6796

Installation route: 分配阀前左~过渡阀块(分配阀下)

Length: 920 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. 20

354-4519

Installation route: 分配阀右~电磁阀(液压泵后下)

Length: 1,520 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. 37

278-6768

Installation route: 分配阀上左~分配阀上右

Length: 330 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. 2

356-9169

Installation route: 分配阀前~回转马达

Length: 950 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: 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

356-9166

Installation route: 分配阀前~回转马达

Length: 790 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: 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. 10

358-7448

Installation route: 分配阀右~压力开关阀(液压油箱)

Length: 980 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. 1

4I-0797

Installation route: 分配阀上右~减压阀(分配阀下)

Length: 1,350 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. 3

307-5245

Installation route: 分配阀上~过渡阀块(分配阀下)

Length: 1,080 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. 8

354-4591

Installation route: 分配阀后右~铁管(液压油散热器)

Length: 615 mm
Specification: DN32;1SN-20;4.3Mpa
Left fitting: Light-series flangeOriginal Chinese: 法兰-轻型
Right fitting: 30°法兰-轻型

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Diagram Pipe No. 5

255-1930

Installation route: 分配阀右~回转马达

Length: 510 mm
Specification: DN19;1SN-12;8.7Mpa
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. 17

7Y-4369

Installation route: 分配阀上左~减压阀(分配阀下)

Length: 1,150 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: 45°美制内螺纹平面密封

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Diagram Pipe No. 20

087-5766

Installation route: 分配阀前左~分配阀下左

Length: 680 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

108-7572

Installation route: 分配阀下右~梭阀

Length: 1,650 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. 19

087-4531

Installation route: 分配阀下右~减压阀(分配阀下)

Length: 600 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. 39

317-4816

Installation route: 分配阀上右~电磁阀(分配阀下)

Length: 1,350 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: 45°美制内螺纹平面密封

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Diagram Pipe No. 9

356-9083

Installation route: 回油铁管(分配阀)~控制阀(回转接头右)

Length: 1,690 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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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®312E Control Valve?

There are 4 published records. 4 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Caterpillar CAT®312E Control Valve?

Based on published records with valid lengths, the range is 630–2,300 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®312E Control Valve?

The most frequent raw specifications in the current published records are: DN10;-6;10.3Mpa (3 records), DN10;1SN-6;10.4Mpa (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®312E Control Valve?

Each record keeps the left and right fitting descriptions separate. Current examples: 204-8543: left American female thread, flat-face seal; right American female thread, flat-face seal; 087-5761: left American female thread, flat-face seal; right American female thread, flat-face seal; 087-4503: 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®312E Control Valve hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 9 (204-8543), Pipe No. 5 (087-5761), Pipe No. 4 (087-4503), Pipe No. 3 (4I-3994). Open a record to compare its installation position with the linked manual page.