Hydraulic line repair data

Caterpillar CAT®318C Hydraulic Pump Hose List

Coverage details

Hoses: 4 records
Full specifications: 4 records
Systems: 1 systems
Length range: 370–810 mm

Current system

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Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 41

178-5904

Installation route: 液压泵~液压油过滤器

Length: 580 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: 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. 62

133-5733

Installation route: 液压泵~液压油过滤器

Length: 430 mm
Specification: DN13;1SN-8;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. 3

111-0982

Installation route: 液压泵~蓄能器电磁阀

Length: 810 mm
Specification: DN13;1SN-8;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. 91

178-5915

Installation route: 液压泵~液压泵吸油铁管

Length: 370 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. 2

202-3617

Installation route: 液压泵~

Length: 950 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. 3

199-1749

Installation route: 液压泵上~分配阀下

Length: 1,100 mm
Specification: DN25;6SH-16;42Mpa
Left fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型
Right fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型

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Diagram Pipe No. 6

245-2054

Installation route: 液压泵~液压泵吸油铁管

Length: 702 mm
Specification: DN32;2层纤维+螺旋钢丝-20;1.4Mpa
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. 15

9R-3138

Installation route: 液压泵~电磁阀(液压泵下)

Length: 950 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. 5

7T-0630

Installation route: 液压泵~电磁阀(液压泵下)

Length: 800 mm
Specification: DN10;4SP-6;28Mpa
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

9R-3138

Installation route: 液压泵上~电磁阀(液压泵下)

Length: 950 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. 14

7T-0630

Installation route: 液压泵~电磁阀(液压泵下)

Length: 800 mm
Specification: DN10;4SP-6;28Mpa
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

199-1745

Installation route: 液压泵上~分配阀下

Length: 1,300 mm
Specification: DN25;6SH-16;42Mpa
Left fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型
Right fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型

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Diagram Pipe No. 92

4I-1878

Installation route: 液压泵上~分配阀后

Length: 1,380 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-6054

Installation route: 液压泵~分配阀上

Length: 2,350 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. 3

207-6296

Installation route: 液压泵上~分配阀后

Length: 1,500 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. 78

102-1157

Installation route: 液压泵~先导滤芯

Length: 1,250 mm
Specification: DN13;-8;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. 5

210-8618

Installation route: 液压泵~分配阀

Length: 1,835 mm
Specification: DN19;4SP-12;28Mpa
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. 80

087-5772

Installation route: 液压泵左~

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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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®318C Hydraulic Pump?

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®318C Hydraulic Pump?

Based on published records with valid lengths, the range is 370–810 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®318C Hydraulic Pump?

The most frequent raw specifications in the current published records are: DN13;1SN-8;10.4Mpa (2 records), DN19;1SN-12;8.7Mpa (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®318C Hydraulic Pump?

Each record keeps the left and right fitting descriptions separate. Current examples: 178-5904: left American female thread, flat-face seal; right 90° elbow, American female thread, flat-face seal; 133-5733: left American female thread, flat-face seal; right American female thread, flat-face seal; 111-0982: 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®318C Hydraulic Pump hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 41 (178-5904), Pipe No. 62 (133-5733), Pipe No. 3 (111-0982), Pipe No. 91 (178-5915). Open a record to compare its installation position with the linked manual page.