Individual hose record

121-8252 Hose Repair Specifications

Excavator · Caterpillar · CAT®M318 · Attachments – Breaker

Finished length2,400 mm

Hose repair card

Everything needed to identify and make this hose

Caterpillar CAT®M318Pipe No. 7 · Part 121-8252

Make this hose121-8252
L = 2,400 mmDN25；4SP-16；28MpaL90°R0°
Finished length2,400 mm
Working pressure28 MPa
Hose specificationDN25；4SP-16；28Mpa
Quantity1
L90°

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

R0°

Right fittingHeavy-series flangeSAE FLANGE · 0°View real fitting photos ↗

Route小臂破碎器截止阀左

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121-8252 hose repair card

Repair specifications

Part number
121-8252
Diagram pipe number
7
Installation route
小臂破碎器截止阀左
Hose specification
DN25；4SP-16；28Mpa
Finished length
2,400 mm
Working pressure
28 MPa
Left fitting
90° heavy-series flangeOriginal Chinese: 90°法兰-重型
Right fitting
Heavy-series flangeOriginal Chinese: 法兰-重型
Quantity
1

Same system

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Specification
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Left fitting
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Right fitting
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Diagram Pipe No. 10

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Length
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Right fitting
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Diagram Pipe No. 6

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Installation route: 小臂破碎器截止阀左

Length
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Specification
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Left fitting
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Right fitting
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Diagram Pipe No. 5

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Installation route: 小臂破碎器截止阀右

Length
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Specification
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Left fitting
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Right fitting
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Diagram Pipe No. 6

121-3081

Installation route: 小臂破碎器截止阀右

Length
2,400 mm
Specification
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Left fitting
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Right fitting
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Diagram Pipe No. 2

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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. 11

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Installation route: 大臂后段(破碎器)~大臂前段(破碎器)

Length
1,230 mm
Specification
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Diagram Pipe No. 6

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Installation route: 小臂破碎器截止阀

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
90° heavy-series flangeOriginal Chinese: 90°法兰-重型
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Workshop guide

Finding the correct hydraulic hose for Caterpillar CAT®M318 Attachments – Breaker

Start with the machine and route

For Caterpillar CAT®M318 Attachments – Breaker, 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

  • 121-82522,400 mm · DN25；4SP-16；28Mpa · 小臂破碎器截止阀左

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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