Individual hose record

178-5904 Hose Repair Specifications

Excavator · Caterpillar · CAT®319C · Hydraulic Pump

Finished length580 mm

Hose repair card

Everything needed to identify and make this hose

Caterpillar CAT®319CPipe No. 41 · Part 178-5904

Make this hose178-5904
L = 580 mmDN19；1SN-12；8.7MpaL0°R90°
Finished length580 mm
Working pressure8.7 MPa
Hose specificationDN19；1SN-12；8.7Mpa
Quantity1
L0°

Left fittingAmerican female thread, flat-face sealFITTING · 0°View real fitting photos ↗

R90°

Right fitting90° elbow, American female thread, flat-face sealFITTING · 90°View real fitting photos ↗

Route液压泵~液压油过滤器

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178-5904 hose repair card

Repair specifications

Part number
178-5904
Diagram pipe number
41
Installation route
液压泵~液压油过滤器
Hose specification
DN19；1SN-12；8.7Mpa
Finished length
580 mm
Working pressure
8.7 MPa
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
Quantity
1

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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

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Left fitting
American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting
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Diagram Pipe No. 1

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Length
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Specification
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Left fitting
American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting
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Diagram Pipe No. 7

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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
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Diagram Pipe No. 14

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Length
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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. 78

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Installation route: 液压泵~液压油过滤器

Length
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Specification
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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

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Specification
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Left fitting
American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting
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Specification
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Left fitting
American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting
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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

  • 178-5904580 mm · DN19；1SN-12；8.7Mpa · 液压泵~液压油过滤器

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.

For reference only. Confirm the actual hose before fabrication.

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