Individual hose record

138-3385 Hose Repair Specifications

Excavator · Caterpillar · CAT®M318 · Control Valve

Finished length1,700 mm

Hose repair card

Everything needed to identify and make this hose

Caterpillar CAT®M318Pipe No. 9 · Part 138-3385

Make this hose138-3385
L = 1,700 mmDN32；1SN-20；4.3MpaL90°R90°
Finished length1,700 mm
Working pressure4.3 MPa
Hose specificationDN32；1SN-20；4.3Mpa
Quantity1
L90°

Left fitting90° light-series flangeSAE FLANGE · 90°View real fitting photos ↗

R90°

Right fitting90° light-series flangeSAE FLANGE · 90°View real fitting photos ↗

Route分配阀~液压油箱

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138-3385 hose repair card

Repair specifications

Part number
138-3385
Diagram pipe number
9
Installation route
分配阀~液压油箱
Hose specification
DN32；1SN-20；4.3Mpa
Finished length
1,700 mm
Working pressure
4.3 MPa
Left fitting
90° light-series flangeOriginal Chinese: 90°法兰-轻型
Right fitting
90° light-series flangeOriginal Chinese: 90°法兰-轻型
Quantity
1

Same system

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Diagram Pipe No. 8

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Installation route: 分配阀前~液压油箱

Length
1,700 mm
Specification
DN32；1SN-20；4.3Mpa
Left fitting
90° light-series flangeOriginal Chinese: 90°法兰-轻型
Right fitting
90° light-series flangeOriginal Chinese: 90°法兰-轻型
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Diagram Pipe No. 11

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Installation route: 分配阀前~液压油箱

Length
1,250 mm
Specification
DN32；1SN-20；4.3Mpa
Left fitting
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Right fitting
90° light-series flangeOriginal Chinese: 90°法兰-轻型
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Diagram Pipe No. 23

151-3128

Installation route: 分配阀~

Length
1,700 mm
Specification
DN32；1SN-20；4.3Mpa
Left fitting
90° light-series flangeOriginal Chinese: 90°法兰-轻型
Right fitting
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Diagram Pipe No. 17

151-3128

Installation route: 分配阀后~

Length
1,700 mm
Specification
DN32；1SN-20；4.3Mpa
Left fitting
90° light-series flangeOriginal Chinese: 90°法兰-轻型
Right fitting
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Diagram Pipe No. 14

147-2911

Installation route: 分配阀~

Length
1,800 mm
Specification
DN16；2SN-10；25Mpa
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. 10

139-6898

Installation route: 分配阀前~分配阀前

Length
1,530 mm
Specification
DN19；4SP-12；35Mpa
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. 15

147-2912

Installation route: 分配阀~

Length
1,950 mm
Specification
DN16；2SN-10；25Mpa
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

112-9846

Installation route: 分配阀前~铁管(大臂油缸)

Length
1,100 mm
Specification
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Left fitting
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Right fitting
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Workshop guide

Finding the correct hydraulic hose for Caterpillar CAT®M318 Control Valve

Start with the machine and route

For Caterpillar CAT®M318 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®M318 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

  • 138-33851,700 mm · DN32；1SN-20；4.3Mpa · 分配阀~液压油箱

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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