Individual hose record

307-4943 Hose Repair Specifications

Excavator · Caterpillar · CAT®318F L · Attachments – Quick Coupler

Finished length2,700 mm

Hose repair card

Everything needed to identify and make this hose

Caterpillar CAT®318F LPipe No. 10 · Part 307-4943

Make this hose307-4943
L = 2,700 mmDN6;2SN-4;40MpaL0°R0°
Finished length2,700 mm
Working pressure40 MPa
Hose specificationDN6;2SN-4;40Mpa
Quantity2
L0°

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

R0°

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

Route大臂(快换)~快速联轴阀

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307-4943 hose repair card

Repair specifications

Part number
307-4943
Diagram pipe number
10
Installation route
大臂(快换)~快速联轴阀
Hose specification
DN6;2SN-4;40Mpa
Finished length
2,700 mm
Working pressure
40 MPa
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
Quantity
2

Same system

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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
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. 21

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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. 16

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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. 4

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Installation route: 小臂接头(快换)~快换装置

Length
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Specification
DN6;2SN-4;40Mpa
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

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Installation route: 小臂(快换)~小臂接头(快换)

Length
484 mm
Specification
DN6;2SN-4;40Mpa
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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Installation route: 小臂(快换)~小臂接头(快换)

Length
402 mm
Specification
DN6;2SN-4;40Mpa
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
View full repair specifications

Diagram Pipe No. 3

347-6563

Installation route: 小臂接头(快换)~快换装置

Length
402 mm
Specification
DN6;2SN-4;40Mpa
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
View full repair specifications

Workshop guide

Finding the correct hydraulic hose for Caterpillar CAT®318F L Attachments – Quick Coupler

Start with the machine and route

For Caterpillar CAT®318F L Attachments – Quick Coupler, 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®318F L 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

  • 307-49432,700 mm · DN6;2SN-4;40Mpa · 大臂(快换)~快速联轴阀

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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