Hydraulic line repair data

Caterpillar CAT®318B Hydraulic Pump Hose List

Coverage details

Hoses: 4 records
Full specifications: 4 records
Systems: 1 systems
Length range: 660–3,500 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

107-1591

Installation route: 液压泵吸油铁管~进回油阀

Length: 3,500 mm
Specification: DN10;-6;10.3Mpa
Left fitting: 美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 19

135-1097

Installation route: 液压泵上~蓄能器电磁阀

Length: 850 mm
Specification: DN6;-4;10.3Mpa
Left fitting: 美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 36

185-9047

Installation route: 液压泵右~铁管(液压泵下)

Length: 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. 15

4I-1077

Installation route: 液压泵~堵头(减震管)

Length: 1,150 mm
Specification: DN19;4SP-12;35Mpa
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

168-9649

Installation route: 液压泵~分配阀后(进油)

Length: 880 mm
Specification: DN25;4SP-16;35Mpa
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. 59

123-2755

Installation route: 液压泵~分配阀前

Length: 2,450 mm
Specification: DN6;-4;19.2Mpa
Left fitting: 90°美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 2

168-9645

Installation route: 液压泵~分配阀后(进油)

Length: 960 mm
Specification: DN25;4SP-16;35Mpa
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. 18

131-9869

Installation route: 液压泵~液压泵吸油铁管

Length: 482 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. 53

129-5923

Installation route: 液压泵上~分配阀

Length: 1,400 mm
Specification: DN6;-4;19.2Mpa
Left fitting: 90°美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 13

5I-3118

Installation route: 液压泵~液压油过滤器

Length: 700 mm
Specification: DN13;-8;10.3Mpa
Left fitting: 90°美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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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®318B 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®318B Hydraulic Pump?

Based on published records with valid lengths, the range is 660–3,500 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

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

The most frequent raw specifications in the current published records are: DN10;-6;10.3Mpa (1 records), DN16;6SH-10;42Mpa (1 records), DN19;4SP-12;35Mpa (1 records), DN6;-4;10.3Mpa (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®318B Hydraulic Pump?

Each record keeps the left and right fitting descriptions separate. Current examples: 107-1591: left 美制内螺纹37°锥; right 美制内螺纹37°锥; 135-1097: left 美制内螺纹37°锥; right 美制内螺纹37°锥; 185-9047: 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®318B Hydraulic Pump hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 2 (107-1591), Pipe No. 19 (135-1097), Pipe No. 36 (185-9047), Pipe No. 15 (4I-1077). Open a record to compare its installation position with the linked manual page.