Hydraulic line repair data

Caterpillar CAT®312E L Engine Oil Lines Hose List

Coverage details

Hoses: 4 records
Full specifications: 4 records
Systems: 1 systems
Length range: 764–1,024 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. 7

428-5853

Installation route: 机油管

Length: 920 mm
Specification: DN19;2SN-12;13.8Mpa
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. 5

351-3943

Installation route: 油底壳排油管

Length: 764 mm
Specification: DN16;1SN-10;10.5Mpa
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. 6

351-3993

Installation route: 机油管

Length: 1,024 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. 7

351-3994

Installation route: 机油管

Length: 924 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. 6

428-5852

Installation route: 机油管

Length: 1,055 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: 90° elbow, American female thread, flat-face sealOriginal Chinese: 90°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®312E L Engine Oil Lines?

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®312E L Engine Oil Lines?

Based on published records with valid lengths, the range is 764–1,024 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®312E L Engine Oil Lines?

The most frequent raw specifications in the current published records are: DN19;1SN-12;8.7Mpa (2 records), DN16;1SN-10;10.5Mpa (1 records), DN19;2SN-12;13.8Mpa (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®312E L Engine Oil Lines?

Each record keeps the left and right fitting descriptions separate. Current examples: 428-5853: left American female thread, flat-face seal; right 90° elbow, American female thread, flat-face seal; 351-3943: left American female thread, flat-face seal; right American female thread, flat-face seal; 351-3993: left 90° elbow, 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®312E L Engine Oil Lines hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 7 (428-5853), Pipe No. 5 (351-3943), Pipe No. 6 (351-3993), Pipe No. 7 (351-3994). Open a record to compare its installation position with the linked manual page.