TTI
TTI TTK-18-6B
TTK series filter element
TTI TTK-18-6B specifications
The TTI TTK-18-6B is a 6µm dual phase microglass filter element. It measures 3.89" OD x 1.6" ID x 18.5" long. Filtration efficiency is rated at β1000 ≥ 7 per ISO 16889. Seals are Buna-N, rated for Up to 250°F. Collapse pressure rating is 150 PSID. 6 verified cross-references are available from aftermarket manufacturers. Specifications verified. Last reviewed: March 2026
Physical fit
- Outer Diameter (O.D.)
- 3.89"OEM-published
- Inner Diameter (I.D.)
- 1.6"OEM-published
- Overall Length
- 18.5"OEM-published
- Micron Rating
- 6µmOEM-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.
- Efficiency (ISO 16889)
- β1000 ≥ 7
- Media Type
- Dual Phase Microglass
- Collapse Rating
- 150 PSID
- Operating Temperature
- Up to 250°F
- Series
- TTK
About the TTI TTK-18-6B
TTI TTK-18-6B is a filter element rated at 6 µm (6 µm nominal), a beta ratio of β ≥ 1000, 150 psid collapse pressure, and measuring 3.89 in OD, 1.6 in ID, and 18.5 in length. It uses Dual Phase Microglass media and Buna-N seals, rated for 250 °F maximum (TTI Elements Catalog 08May24.pdf, p.128).
What replaces the TTI TTK-18-6B?
6 published cross-references on file. Select to expand.
What replaces the TTI TTK-18-6B?
6 published cross-references on file. 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.
Published cross-references
| Part Number | Manufacturer | Match |
|---|---|---|
| HPKL186MB | — | Verified |
| C925799 | Commercial | Verified |
| RK-H-1806A | Fairey Arlon | Verified |
| H2K005BN | Hydac | Verified |
| H2K005BN3 | Hydac | Verified |
| MP4403 | MP Filtri | Verified |
Application & Compatibility
The TTI TTK-18-6B is designed for use in hydraulic and lubrication filtration systems. With a 6µm rating, this element is suitable for proportional valve protection and general hydraulic systems. Buna-N seals provide compatibility with standard petroleum-based fluids and mineral oils.
The 150 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 TTK-18-6B?
What are the dimensions of the TTI TTK-18-6B?
What seal material does the TTI TTK-18-6B use?
Is there a cross-reference for the TTI TTK-18-6B?
What is the collapse pressure rating of the TTI TTK-18-6B?
What is the operating temperature range for the TTI TTK-18-6B?
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.
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