Hydraulic line repair data

Caterpillar CAT®312B L Hydraulic Pump Hose List

Coverage details
Hoses
1 records
Full specifications
1 records
Systems
1 systems
Length range
700–700 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. 19

6I-6755

Installation route: 液压泵~液压泵吸油铁管

Length
700 mm
Specification
DN6;-4;10.3Mpa
Left fitting
美制内螺纹37°锥
Right fitting
美制内螺纹37°锥
View full repair specifications

Diagram Pipe No. 95

5I-3118

Installation route: 液压泵上~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
View full repair specifications

Diagram Pipe No. 1

113-6576

Installation route: 液压泵前~分配阀后

Length
945 mm
Specification
DN19;4SP-12;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. 28

4I-1464

Installation route: 液压泵上~回转马达

Length
770 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
View full repair specifications

Diagram Pipe No. 52

123-2755

Installation route: 液压泵上~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
View full repair specifications

Diagram Pipe No. 58

129-5923

Installation route: 液压泵上~分配阀前

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
View full repair specifications

Diagram Pipe No. 18

151-8793

Installation route: 液压泵吸油铁管~风扇电机

Length
1,110 mm
Specification
DN25;1SN-16;7Mpa
Left fitting
90° elbow, American female thread, flat-face sealOriginal Chinese: 90°美制内螺纹平面密封
Right fitting
45°美制内螺纹平面密封
View full repair specifications

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®312B L Hydraulic Pump?

There are 1 published records. 1 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Caterpillar CAT®312B L Hydraulic Pump?

Based on published records with valid lengths, the range is 700 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®312B L Hydraulic Pump?

The most frequent raw specifications in the current published records are: 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®312B L Hydraulic Pump?

Each record keeps the left and right fitting descriptions separate. Current examples: 6I-6755: left 美制内螺纹37°锥; right 美制内螺纹37°锥. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Caterpillar CAT®312B L Hydraulic Pump hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 19 (6I-6755). Open a record to compare its installation position with the linked manual page.

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