Hy-Pro
Hy-Pro HP866L12-17MB
HP866L series filter element
Hy-Pro HP866L12-17MB specifications
The Hy-Pro HP866L12-17MB is a 17µm nominal (β-rated, absolute 4µm) g8 dualglass filter element. It measures 4.76" OD x 3.11" ID x 11.63" long. Filtration efficiency is rated at β4000 per ISO 16889. Seals are Nitrile (Buna), rated for -45°F to 225°F. Collapse pressure rating is 200 PSID. 2 verified cross-references are available from aftermarket manufacturers. Specifications verified. Last reviewed: May 2026
Physical fit
- Outer Diameter (O.D.)
- 4.76"OEM-published
- Inner Diameter (I.D.)
- 3.11"OEM-published
- Overall Length
- 11.63"OEM-published
- Micron Rating
- 17µm nominal (β-rated, absolute 4µm)OEM-published
- Seal Material
- Nitrile (Buna)OEM-published
- Connection / Thread
- Not yet verified from an OEM source
Performance: Hy-Pro published values
These are Hy-Pro's own published numbers. Performance specs differ by brand and are never inherited across cross-references.
- Efficiency (ISO 16889)
- β4000
- Efficiency
- 99.97%
- Media Type
- G8 DualglassDualglass fiber media
- Collapse Rating
- 200 PSID
- Operating Temperature
- -45°F to 225°F
- Series
- HP866L
About the Hy-Pro HP866L12-17MB
Hy-Pro HP866L12-17MB is a filter element rated at 4 µm (17 µm nominal), a beta ratio of β ≥ 4000, 200 psid collapse pressure, and measuring 4.76 in OD, 3.11 in ID, and 11.63 in length. It uses G8 Dualglass media and Nitrile (Buna) seals, rated for -45 °F to 225 °F (Hy-Pro 12F-032 drawing).
What replaces the Hy-Pro HP866L12-17MB?
2 published cross-references on file. Select to expand.
What replaces the Hy-Pro HP866L12-17MB?
2 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
Application & Compatibility
The HY-PRO HP866L12-17MB is designed for use in hydraulic and lubrication filtration systems. With a 17µm nominal (β-rated, absolute 4µm) rating, this element is suitable for pump and component protection in industrial hydraulic circuits. Nitrile (Buna) seals provide compatibility with standard petroleum-based fluids and mineral oils.
The 200 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 Hy-Pro HP866L12-17MB?
What are the dimensions of the Hy-Pro HP866L12-17MB?
What seal material does the Hy-Pro HP866L12-17MB use?
Is there a cross-reference for the Hy-Pro HP866L12-17MB?
What is the collapse pressure rating of the Hy-Pro HP866L12-17MB?
What is the operating temperature range for the Hy-Pro HP866L12-17MB?
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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