Hydraulic line repair data

Caterpillar CAT®312F GC Boom Assembly Hose List

Coverage details

Hoses: 5 records
Full specifications: 5 records
Systems: 1 systems
Length range: 775–1,660 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. 2

124-0838

Installation route: 铲斗油缸左(2.5M)

Length: 1,300 mm
Specification: DN16;6SH-10;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. 1

4I-1095

Installation route: 小臂油缸

Length: 775 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. 5

221-4663

Installation route: Arm cylinder — leftOriginal Chinese: 小臂油缸左

Length: 1,020 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. 1

4I-1095

Installation route: Arm cylinder — rightOriginal Chinese: 小臂油缸右

Length: 775 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. 2

123-2729

Installation route: 铲斗油缸左(3M)

Length: 1,660 mm
Specification: DN16;6SH-10;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. 1

199-1689

Installation route: 大臂左1

Length: 960 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: 45°美制内螺纹平面密封

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Diagram Pipe No. 3

372-9689

Installation route: 大臂左2

Length: 1,000 mm
Specification: DN19;6SH-12;42Mpa
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. 7

458-2286

Installation route: 大臂左4

Length: 985 mm
Specification: DN19;6SH-12;42Mpa
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. 4

449-7061

Installation route: 大臂左3

Length: 960 mm
Specification: DN16;6SH-10;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. 1

104-8999

Installation route: 铲斗油缸右(2.5M)

Length: 1,330 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° light-series flangeOriginal Chinese: 90°法兰-轻型

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Diagram Pipe No. 1

124-1305

Installation route: 铲斗油缸右(3M)

Length: 1,700 mm
Specification: DN19;6SH-12;42Mpa
Left fitting: 90° light-series flangeOriginal Chinese: 90°法兰-轻型
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®312F GC Boom Assembly?

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®312F GC Boom Assembly?

Based on published records with valid lengths, the range is 775–1,660 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®312F GC Boom Assembly?

The most frequent raw specifications in the current published records are: DN19;6SH-12;42Mpa (3 records), DN16;6SH-10;42Mpa (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®312F GC Boom Assembly?

Each record keeps the left and right fitting descriptions separate. Current examples: 124-0838: left American female thread, flat-face seal; right American female thread, flat-face seal; 4I-1095: left American female thread, flat-face seal; right American female thread, flat-face seal; 221-4663: 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®312F GC Boom Assembly hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 2 (124-0838), Pipe No. 1 (4I-1095), Pipe No. 5 (221-4663), Pipe No. 1 (4I-1095). Open a record to compare its installation position with the linked manual page.