Hydraulic line repair data

Caterpillar CAT®M325D MH Hose Parts Reference

Manufacturer parts data

Official Cat hose references

Use the part number, finished length, and hose size to identify a likely replacement.

Cat part number

087-6583

Finished length
2,530 mm
Hose inside diameter
0.375 in
Hose type
Thermoplastic Reduced Outside Diameter Hose
Service class
Medium pressure
Open Cat part page

Cat part number

202-3994

Finished length
690 mm
Hose inside diameter
0.748 in
Hose type
4 or 6 Wire Spiral - XT-6ES Hose
Service class
High pressure
Open Cat part page

Cat part number

236-3261

Finished length
390 mm
Hose inside diameter
0.748 in
Hose type
1-Wire Braid Hose
Service class
Medium pressure
Open Cat part page

Cat part number

255-1858

Finished length
550 mm
Hose inside diameter
0.500 in
Hose type
Pilot Hose
Service class
Medium pressure
Open Cat part page

Cat part number

307-7977

Finished length
2,320 mm
Hose inside diameter
0.375 in
Hose type
Fuel Hose - High Temperature
Service class
Low pressure / high temperature
Open Cat part page

Cat part number

366-8592

Finished length
740 mm
Hose inside diameter
1.000 in
Hose type
4 or 6 Wire Spiral
Service class
High pressure
Open Cat part page

Cat does not publish both end-fitting details on these pages. Match the part number and confirm both fittings on the removed hose before fabrication.

Manufacturer reference paths

Related machines sharing hose part numbers

These machines share one or more published hose part numbers with the current model.

CAT®324D L6 shared part numbersCAT®329D L6 shared part numbersCAT®M325D L MH6 shared part numbersCAT®324D FM5 shared part numbersCAT®324D LN5 shared part numbersCAT®325D FM5 shared part numbersCAT®325D L5 shared part numbersCAT®325D MH5 shared part numbersCAT®326D L5 shared part numbersCAT®329D LN5 shared part numbersCAT®324D FM LL4 shared part numbersCAT®325D FM LL4 shared part numbers

Workshop guide

Finding the correct hydraulic hose for Caterpillar CAT®M325D MH

Start with the machine and route

For Caterpillar CAT®M325D MH, 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.

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.

Manufacturer references to compare

  • 087-65832,530 mm · 0.38 in ID · Thermoplastic Reduced Outside Diameter Hose
  • 202-3994690 mm · 0.75 in ID · 4 or 6 Wire Spiral - XT-6ES Hose
  • 236-3261390 mm · 0.75 in ID · 1-Wire Braid Hose
  • 255-1858550 mm · 0.5 in ID · Pilot Hose
  • 307-79772,320 mm · 0.38 in ID · Fuel Hose - High Temperature
  • 366-8592740 mm · 1 in ID · 4 or 6 Wire Spiral

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.

Based on current published data

Common Repair Questions

Questions appear only when a published record or linked PDF page provides the answer.

Which manufacturer hose part numbers are listed for Caterpillar CAT®M325D MH?

The manufacturer reference currently lists 6 hose part numbers, including 087-6583, 202-3994, 236-3261, 255-1858, 307-7977, 366-8592. Use the exact part number as the first lookup key.

What finished hose lengths are published for Caterpillar CAT®M325D MH?

The published manufacturer references range from 390–2,530 mm. Match the length to the exact part number and machine before ordering or fabrication.

Do the manufacturer references include both end fittings for Caterpillar CAT®M325D MH?

No. These reference rows provide part number, finished length, hose inside diameter, and hose type or service class where published. Confirm both end fittings on the removed hose or an applicable parts drawing.

Optional cross-check

Ask an AI search tool to check this repair data

The question is already written for this machine or hose. Use a tool with web search enabled; treat its answer as a starting point and verify on the machine.

ChatGPT Perplexity Claude Google AI Mode
See the exact question being sent
I am checking hydraulic hose repair information for "Caterpillar CAT®M325D MH Hose Parts Reference". Use web search and cite a source for every factual point. Compare this HoseSeek page with manufacturer manuals and reliable parts documentation: https://www.hoseseek.com/machines/caterpillar/cat-174-m325d-mh--43415426233137343b4d33323544204d48/

Verify, where applicable:
1. Exact machine model and any serial-number range.
2. Hydraulic system and installation route.
3. Hose part number and diagram pipe number.
4. Finished length, hose specification, and pressure rating.
5. Both end fittings, including thread, sealing seat, size, and angle.
6. Installation-diagram position and routing.

State explicitly what you could not verify. Do not infer a missing dimension or fitting. End with a short on-machine checklist for a hose repair technician.
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