Hydraulic line repair data

Caterpillar CAT®312C L Control Lever Hose List

Coverage details

Hoses: 5 records
Full specifications: 5 records
Systems: 1 systems
Length range: 1,570–2,430 mm

Current system

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Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 57

104-8771

Installation route: 中转接头~分配阀下

Length: 2,430 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. 35

110-5499

Installation route: 中转接头~分配阀下

Length: 1,570 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. 34

7Y-4199

Installation route: 中转接头~分配阀下

Length: 1,800 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. 32

4I-3988

Installation route: 中转接头~分配阀上

Length: 2,250 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. 33

4I-3991

Installation route: 中转接头~分配阀下

Length: 2,100 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. 27

176-4561

Installation route: 右手柄~中转接头

Length: 1,170 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: 80°美制内螺纹平面密封

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Diagram Pipe No. 9

4I-5795

Installation route: 中转接头~先导阀(驾驶室)

Length: 1,250 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. 58

4I-0800

Installation route: 中转接头~分配阀下

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. 11

4I-0797

Installation route: 中转接头~先导阀(驾驶室)

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. 19

184-9283

Installation route: 左手柄~中转接头

Length: 1,250 mm
Specification: DN10;-6;10.3Mpa
Left fitting: 65°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

184-9284

Installation route: 右手柄~进回油阀

Length: 1,130 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: 80°美制内螺纹平面密封

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Diagram Pipe No. 26

176-4559

Installation route: 左手柄~中转接头

Length: 1,300 mm
Specification: DN10;-6;10.3Mpa
Left fitting: 65°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

184-9285

Installation route: 右手柄~中转接头

Length: 1,270 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: 80°美制内螺纹平面密封

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Diagram Pipe No. 12

4I-0836

Installation route: 中转接头~先导阀(驾驶室)

Length: 1,200 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. 27

176-4561

Installation route: 左手柄~进回油阀

Length: 1,170 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: 80°美制内螺纹平面密封

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Diagram Pipe No. 23

176-4556

Installation route: 右手柄~进回油阀

Length: 1,100 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: 65°美制内螺纹平面密封

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Diagram Pipe No. 24

176-4557

Installation route: 左手柄~进回油阀

Length: 1,170 mm
Specification: DN10;-6;10.3Mpa
Left fitting: 65°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

184-9285

Installation route: 左手柄~中转接头

Length: 1,270 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: 80°美制内螺纹平面密封

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Diagram Pipe No. 25

176-4558

Installation route: 右手柄~中转接头

Length: 1,230 mm
Specification: DN10;-6;10.3Mpa
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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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 L Control Lever?

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®312C L Control Lever?

Based on published records with valid lengths, the range is 1,570–2,430 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 L Control Lever?

The most frequent raw specifications in the current published records are: DN10;1SN-6;10.4Mpa (3 records), DN10;-6;10.3Mpa (2 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 L Control Lever?

Each record keeps the left and right fitting descriptions separate. Current examples: 104-8771: left American female thread, flat-face seal; right American female thread, flat-face seal; 110-5499: left American female thread, flat-face seal; right American female thread, flat-face seal; 7Y-4199: 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 L Control Lever hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 57 (104-8771), Pipe No. 35 (110-5499), Pipe No. 34 (7Y-4199), Pipe No. 32 (4I-3988). Open a record to compare its installation position with the linked manual page.