Individual hose record

7Y-8379 Hose Repair Specifications

Excavator · Caterpillar · CAT®318C · Control Valve

Finished length800 mm

Hose repair card

Everything needed to identify and make this hose

Caterpillar CAT®318CPipe No. 66 · Part 7Y-8379

Make this hose7Y-8379
L = 800 mmDN10;-6;10.3MpaL90°R0°
Finished length800 mm
Working pressure10.3 MPa
Hose specificationDN10;-6;10.3Mpa
Quantity1
L90°

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

R0°

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

Route分配阀后~分配阀后

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7Y-8379 hose repair card

Repair specifications

Part number
7Y-8379
Diagram pipe number
66
Installation route
分配阀后~分配阀后
Hose specification
DN10;-6;10.3Mpa
Finished length
800 mm
Working pressure
10.3 MPa
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
Quantity
1

Same system

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Left fitting
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Right fitting
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Diagram Pipe No. 53

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Right fitting
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Right fitting
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Diagram Pipe No. 10

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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. 12

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Installation route: 分配阀上~

Length
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Specification
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Left fitting
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Right fitting
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Installation route: 分配阀上~电磁阀(液压泵下)

Length
2,550 mm
Specification
DN10;-6;10.3Mpa
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. 1

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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
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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
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Workshop guide

Finding the correct hydraulic hose for Caterpillar CAT®318C Control Valve

Start with the machine and route

For Caterpillar CAT®318C Control Valve, 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®318C 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

  • 7Y-8379800 mm · DN10;-6;10.3Mpa · 分配阀后~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.

For reference only. Confirm the actual hose before fabrication.

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