VFVerifiedFilters

Fleetguard

Fleetguard HF6603

The Fleetguard HF6603 is a 3µm g8 dualglass engine & mobile filter element. It measures 3.75" OD x 5.47" long. Filtration efficiency is rated at β1000 per ISO 16889. Seals are Nitrile (Buna-N). 2 verified cross-references are available from aftermarket manufacturers.

3µmG8 DualglassNitrile (Buna-N)

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2 Cross-References Available

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Part NumberHF6603
ManufacturerFleetguard
CategoryEngine & Mobile

What are the specifications of the Fleetguard HF6603?

Technical specifications for the Fleetguard HF6603 filter element. Data sourced from manufacturer catalogs and verified against OEM documentation.

SpecificationValue
Performance
Micron Rating3µm
Media TypeG8 Dualglass
Efficiency (ISO 16889)β1000
Dimensions
O.D. (inches)3.75"
O.A.L. (inches)5.47"
Seal MaterialNitrile (Buna-N)

Last verified: February 2026

What replaces the Fleetguard HF6603?

2 verified replacements available from Hy-Pro, Swift Filters

All cross-references are reviewed for dimensional and performance compatibility. Enter your info below to receive the full cross-reference report.

Application & Compatibility

The FLEETGUARD HF6603 is designed for use in industrial filtration applications. Rated at 3µm. Nitrile (Buna-N) seals provide compatibility with standard petroleum-based fluids and mineral oils.

Frequently Asked Questions

What micron rating is the Fleetguard HF6603?

The Fleetguard HF6603 has a 3µm micron rating with g8 dualglass filter media, rated at β1000 per ISO 16889.

What are the dimensions of the Fleetguard HF6603?

The Fleetguard HF6603 measures 3.75" OD, 5.47" overall length.

What seal material does the Fleetguard HF6603 use?

The Fleetguard HF6603 uses Nitrile (Buna-N) seals.

Is there a cross-reference for the Fleetguard HF6603?

Yes. There are 2 verified cross-references for the Fleetguard HF6603 from manufacturers including Hy-Pro, Swift Filters. Contact VerifiedFilters for specific part numbers and availability.

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