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Excavator Filters

523-4987 Fuel-Water Separator Element for Cat 320 323 330

Name: 523-4987 Fuel-Water Separator Element for Cat 320 323 330
Brand: EexcavaStart
SKU: 523-4987

OEM / reference523-4987

SpecificationFuel-Water Separator Filter Element

Catalog ID88774127

Fuel-water separator element identified by Cat number 523-4987, formatted 5234987. The Cat 320/320 GC maintenance guide records it as the primary fuel element for defined later serial ranges, paired in the service schedule with secondary element 509-5694. Independent filter catalogs identify SN 40858 and SK 48941 as cross-reference candidates; verify dimensions and sealing details before treating either as interchangeable. Published application records include Cat 320, 323, 325 and 330 excavator families.

Fitment status: Verified · Checked 2026-07-28

Product Type: Fuel-Water Separator Filter Element
Product Brand: EexcavaStart
Published Height: Approximately 258 mm; verify
Published Outer Diameter: Approximately 103 mm; verify
Seal / End-Cap Profile: Confirm against removed element
Supply Condition: Confirm with quotation

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Part-number relationships

Relationship	Reference family	Number
Primary Manufacturer Part Number	Cat fuel-water separator element	523-4987
Formatted Alias	Same number without separator	5234987
Catalog Cross-Reference - Verify Dimensions	HIFI FILTER catalog candidate	SN 40858
Catalog Cross-Reference - Verify Dimensions	SF FILTER catalog candidate	SK 48941

Evidence record

Source: Exact-reference evidence retained for internal audit
Evidence grade: multi-source-supported
Checked: 2026-07-28

Source URLs, catalog files and local evidence paths are stored in the protected product audit record and are not public outbound links.

Product fitment guide

Part numbers and compatible models

Quickly compare the reference number and recorded machine applications. Use the original photos and the checklist before ordering.

Part identification

Reference numbers

Primary number

523-4987

Formatting alias

5234987

Other documented relationship

SN 40858
SK 48941

Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.

Product summary

Fuel-Water Separator Filter Element

Category: Excavator Filters
Catalog ID: 88774127
Photo views: 5

Before ordering

Confirm these details

Match the complete part number on the original component.
Compare connectors, mounting points and visible dimensions with the product photos.
Confirm the exact machine or engine model and serial range before ordering.

Machine fitment

Compatible model references

5 model references

Excavator family: Cat 320 / 320 GC
Excavator family: Cat 323
Excavator family: Cat 325
Excavator family: Cat 330 / 330 GC
Fitment limitation: Confirm part number, overall dimensions, end caps, seal and machine serial prefix

Compatibility lists identify searchable model families, not every production serial range. Confirm the original part number and machine serial number before purchase.

Quick fitment answers

Common questions about 523-4987

Which machines use 523-4987?

Recorded compatible model references include Excavator family: Cat 320 / 320 GC, Excavator family: Cat 323, Excavator family: Cat 325, Excavator family: Cat 330 / 330 GC, Fitment limitation: Confirm part number, overall dimensions, end caps, seal and machine serial prefix. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 523-4987?

Formatting aliases for the same number: 5234987.

How do I confirm 523-4987 before ordering?

Match the complete part number on the original component. Compare connectors, mounting points and visible dimensions with the product photos. Confirm the exact machine or engine model and serial range before ordering. Send clear photos of the original unit and connector layout when requesting a quote.

Continue comparing recovered references from the same system.

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