VFVerifiedFilters

TTI

TTI TT9021-4-3B

TT9021 series filter element

OEM ManufacturerAbsolute Rated
OD 1.75"L 4.51"ID 1.01"
Dimensional schematic from verified specifications

TTI TT9021-4-3B specifications

The TTI TT9021-4-3B is a 3µm dual phase microglass filter element. It measures 1.75" OD x 1.01" ID x 4.51" long. Filtration efficiency is rated at β4.5(c) ≥ 1000 per ISO 16889. Seals are Buna-N. Operating temperature: Up to 250°F. Collapse pressure rating is 3000 PSID. 15 cross-references on file (12 verified, 3 transitive). Specifications verified. Last reviewed: March 2026

Physical fit

Outer Diameter (O.D.)
1.75"OEM-published
Inner Diameter (I.D.)
1.01"OEM-published
Overall Length
4.51"OEM-published
Micron Rating
3µmOEM-published
Seal Material
Buna-NOEM-published
Connection / Thread
Not yet verified from an OEM source

Performance: TTI published values

These are TTI's own published numbers. Performance specs differ by brand and are never inherited across cross-references.

Beta Ratio (ISO 16889)
β4.5(c) ≥ 1000OEM-published
Media Type
Dual Phase Microglass
Collapse Rating
3000 PSIDOEM-published
Max Operating Pressure
3000 psi (207 bar)Decoded from part number
Operating Temperature
Up to 250°FOEM-published
Series
TT9021

Additional

Filter Type
Cartridge Element
Element Length
4"

About the TTI TT9021-4-3B

TTI TT9021-4-3B is a filter element rated at 3 µm (3 µm nominal), a beta ratio of β ≥ 1000, 3000 psid collapse pressure, and measuring 1.75 in OD, 1.01 in ID, and 4.51 in length. It uses Dual Phase Microglass media and Buna-N seals, rated for 250 °F maximum (TTI Elements Catalog 08May24.pdf, p.101).

What replaces the TTI TT9021-4-3B?

15 cross-references on file (12 verified, 3 transitive). Select to expand.

A cross-reference confirms dimensional fit and micron rating, not performance equivalence. Beta ratio, collapse rating, media, and service life can differ between brands.

Cross-references on file

Each row carries its own evidence status. Verified: confirmed against a source document. Sourced: taken from a published cross list, not independently confirmed. Transitive: derived through a chain of published crosses. None is an application-compatibility approval.

Part NumberManufacturerMatch
SF9021-4-3UMSwift FiltersTransitive
P167180DonaldsonTransitive
HP21L4-2MBHy-ProTransitive
HP21L42MBHy-ProVerified
HPD204B03DiagneticsVerified
16.9021H3LL-115RPEPEVerified
R21-H-0403AFairey ArlonVerified
R921-Z-0403AFairey ArlonVerified
FC7121A003BSFinnVerified
FFKPVL17121A3ABSFinnVerified
H-9021/4-003BHHydacVerified
H-9021/4-003BH3HydacVerified
071-60300MoogVerified
MP3879MP FiltriVerified
9004 3HCNational FilterVerified
Get a quote on any of these →

Application & Compatibility

The TTI TT9021-4-3B is designed for use in hydraulic and lubrication filtration systems. With a 3µm rating, this element is suitable for servo valve protection and high-precision hydraulic systems. Buna-N seals provide compatibility with standard petroleum-based fluids and mineral oils.

The 3000 PSID collapse rating indicates the maximum differential pressure this element can withstand during cold starts or bypass conditions without structural failure. Ensure your system's maximum differential pressure does not exceed this rating.

Frequently Asked Questions

What micron rating is the TTI TT9021-4-3B?

The TTI TT9021-4-3B has a 3µm micron rating with dual phase microglass filter media, rated at β4.5(c) ≥ 1000 per ISO 16889.

What are the dimensions of the TTI TT9021-4-3B?

The TTI TT9021-4-3B measures 1.75" OD, 1.01" ID, 4.51" overall length.

What seal material does the TTI TT9021-4-3B use?

The TTI TT9021-4-3B uses Buna-N seals.

Is there a cross-reference for the TTI TT9021-4-3B?

Yes. 15 cross-references on file (12 verified, 3 transitive) for the TTI TT9021-4-3B from manufacturers including Swift Filters, Donaldson, Hy-Pro, Diagnetics. A cross-reference is a fit-and-rating claim, not a performance or application approval. Contact VerifiedFilters for specific part numbers and availability.

What is the collapse pressure rating of the TTI TT9021-4-3B?

The TTI TT9021-4-3B has a collapse pressure rating of 3000 PSID. This indicates the maximum differential pressure the element can withstand without structural failure.

What is the operating temperature range for the TTI TT9021-4-3B?

The TTI TT9021-4-3B is rated for Up to 250°F.

How this entry is verified

Every specification on this page names its source: manufacturer documents first, distributor catalogs second, decoded part-number patterns labeled as such. When a value has not been verified from an OEM source, the cell says so. Cross-references are fit claims, never performance claims.

Our verification standards →

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Labeled Cross-References

Every cross-reference on file carries its evidence status: verified, sourced, or transitive

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