Hydraulic line repair data

Caterpillar CAT®319C Hydraulic Pump Hose List

Coverage details

Hoses: 19 records
Full specifications: 19 records
Systems: 1 systems
Length range: 370–2,750 mm

Current system

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Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 15

9R-3138

Installation route: 液压泵~电磁阀(液压泵左)

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(液压泵左)

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. 5

210-8618

Installation route: 液压泵~分配阀后

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. 7

111-6752

Installation route: 液压泵~

Length: 2,200 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. 78

102-1157

Installation route: 液压泵~液压油过滤器

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. 1

7T-0630

Installation route: 液压泵~电磁阀(液压泵)

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. 7

7T-0630

Installation route: 液压泵后~

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. 3

199-1745

Installation route: 液压泵上~分配阀后

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. 91

178-5915

Installation route: 先导泵~回油铁管(液压油箱)

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. 4

199-1749

Installation route: 液压泵上~分配阀后

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. 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. 14

7T-0630

Installation route: 液压泵~电磁阀(液压泵左)

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. 35

4I-5997

Installation route: 液压泵~液压油箱

Length: 950 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. 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. 4

4I-3981

Installation route: 液压泵~

Length: 2,750 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: 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(液压泵左)

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. 80

087-5772

Installation route: 液压泵后~

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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Diagram Pipe No. 2

9R-3138

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. 62

133-5733

Installation route: 先导泵~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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Workshop guide

Finding the correct hydraulic hose for Caterpillar CAT®319C Hydraulic Pump

Start with the machine and route

For Caterpillar CAT®319C Hydraulic Pump, identify the exact model and hydraulic system on the machine first. A part number or diagram pipe number is the fastest way to narrow a replacement hose; if neither is visible, compare the installation route and the existing hose.

See all Caterpillar CAT®319C systems

Read the dimensions before cutting

Check whether a listed dimension is finished assembly length, hose-only length, or cut length. These are not interchangeable. Confirm hose specification and pressure rating, then compare both ends separately: thread, sealing seat, size, angle, and orientation.

Records to compare

9R-3138950 mm · DN10；4SP-6；28Mpa · 液压泵~电磁阀(液压泵左)
7T-0630800 mm · DN10；4SP-6；28Mpa · 液压泵~电磁阀(液压泵左)
210-86181,835 mm · DN19；4SP-12；28Mpa · 液压泵~分配阀后

Use the drawing as a location check

Where an installation drawing or manual figure is available, match its callout to the part number and physical route. A hydraulic circuit diagram explains connections but does not show the exact routing of a hose on the machine. Take the old hose or clear end-fitting photographs to the workshop if any dimension is missing.

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®319C Hydraulic Pump?

There are 19 published records. 19 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Caterpillar CAT®319C Hydraulic Pump?

Based on published records with valid lengths, the range is 370–2,750 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®319C Hydraulic Pump?

The most frequent raw specifications in the current published records are: DN10；4SP-6；28Mpa (6 records), DN10；1SN-6；10.4Mpa (3 records), DN13；1SN-8；10.4Mpa (3 records), DN19；1SN-12；8.7Mpa (2 records), DN25；6SH-16；42Mpa (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®319C Hydraulic Pump?

Each record keeps the left and right fitting descriptions separate. Current examples: 9R-3138: left 90° elbow, American female thread, flat-face seal; right American female thread, flat-face seal; 7T-0630: left American female thread, flat-face seal; right 90° elbow, American female thread, flat-face seal; 210-8618: left American female thread, flat-face seal; right 90° elbow, 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®319C Hydraulic Pump hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 15 (9R-3138), Pipe No. 5 (7T-0630), Pipe No. 5 (210-8618), Pipe No. 7 (111-6752). Open a record to compare its installation position with the linked manual page.