Hydraulic line repair data

Caterpillar CAT®318F Boom Assembly Hose List

Coverage details

Hoses: 3 records
Full specifications: 3 records
Systems: 1 systems
Length range: 850–1,150 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

223-6869

Installation route: 大臂(分节油缸)~分配阀

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. 1

187-5954

Installation route: 大臂左4

Length: 1,150 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. 9

266-1210

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

Length: 850 mm
Specification: DN25;6SH-16;42Mpa
Left fitting: Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting: Heavy-series flangeOriginal Chinese: 法兰-重型

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Diagram Pipe No. 2

197-2156

Installation route: 大臂前段~大臂后段

Length: 1,550 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. 5

417-6554

Installation route: 大臂(分节油缸)~分配阀

Length: 1,179 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: 30°美制内螺纹平面密封

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Diagram Pipe No. 8

381-2203

Installation route: 小臂油缸(分节油缸规格)

Length: 1,350 mm
Specification: DN25;6SH-16;42Mpa
Left fitting: 45° heavy-series flangeOriginal Chinese: 45°法兰-重型
Right fitting: Heavy-series flangeOriginal Chinese: 法兰-重型

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Diagram Pipe No. 3

269-9589

Installation route: 大臂左1

Length: 1,190 mm
Specification: DN25;6SH-16;42Mpa
Left fitting: Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting: 45°美制内螺纹平面密封

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Diagram Pipe No. 4

370-8864

Installation route: 小臂油缸(分节油缸规格)

Length: 1,640 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. 3

223-6696

Installation route: 大臂前段~大臂后段

Length: 1,300 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. 4

269-9593

Installation route: 大臂左2

Length: 1,130 mm
Specification: DN25;6SH-16;42Mpa
Left fitting: Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting: 45°美制内螺纹平面密封

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Diagram Pipe No. 1

187-6054

Installation route: 大臂前段~大臂后段

Length: 1,150 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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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®318F Boom Assembly?

There are 3 published records. 3 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Caterpillar CAT®318F Boom Assembly?

Based on published records with valid lengths, the range is 850–1,150 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®318F Boom Assembly?

The most frequent raw specifications in the current published records are: DN19;6SH-12;42Mpa (2 records), DN25;6SH-16;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®318F Boom Assembly?

Each record keeps the left and right fitting descriptions separate. Current examples: 223-6869: left American female thread, flat-face seal; right American female thread, flat-face seal; 187-5954: left American female thread, flat-face seal; right American female thread, flat-face seal; 266-1210: left Heavy-series flange; right Heavy-series flange. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Caterpillar CAT®318F Boom Assembly hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 2 (223-6869), Pipe No. 1 (187-5954), Pipe No. 9 (266-1210). Open a record to compare its installation position with the linked manual page.