Hy-Pro
Hy-Pro HP37L4-6MB
HP37 series filter element
Hy-Pro HP37L4-6MB specifications
The Hy-Pro HP37L4-6MB is a 6µm g8 dualglass filter element. It measures 3.71" OD x 1.885" ID x 3.989" long. Filtration efficiency is rated at β6 ≥ 4000 per ISO 16889. Seals are Nitrile (Buna-N), rated for -45°F to 225°F. Collapse pressure rating is 450 PSID. 21 verified cross-references are available from aftermarket manufacturers. Specifications verified. Last reviewed: March 2026
Physical fit
- Outer Diameter (O.D.)
- 3.71"OEM-published
- Inner Diameter (I.D.)
- 1.885"OEM-published
- Overall Length
- 3.989"OEM-published
- Micron Rating
- 6µmOEM-published
- Seal Material
- Nitrile (Buna-N)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)
- β6 ≥ 4000
- Efficiency
- 99.97%
- Media Type
- G8 Dualglass
- Collapse Rating
- 450 PSID
- Operating Temperature
- -45°F to 225°F
- Series
- HP37
About the Hy-Pro HP37L4-6MB
Hy-Pro HP37L4-6MB is a filter element rated at 6 µm (6 µm nominal), a beta ratio of β ≥ 6, 450 psid collapse pressure, and measuring 3.71 in OD, 1.885 in ID, and 3.99 in length. It uses G8 Dualglass media and Nitrile (Buna-N) seals, rated for -45 °F to 225 °F (Hy-Pro 11M-059 drawing).
What replaces the Hy-Pro HP37L4-6MB?
21 published cross-references on file. Select to expand.
What replaces the Hy-Pro HP37L4-6MB?
21 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 |
|---|---|---|
| SF370DN-4-6UM | Swift Filters | Sourced |
| P173036 | Donaldson | Verified |
| AP40451 | F.B.O. | Verified |
| FC5031F005BS | Finn | Verified |
| F370-015-HF-B | PTI | Verified |
| FFKPVL1501A15ABS | Finn | Verified |
| MP10501 | MP Filtri | Verified |
| 6.03.04D05BN | Hydac | Verified |
| E0372B1C05 | Western | Verified |
| V0372B1C05 | Vickers | Verified |
| DE0372B1C05 | Denison | Verified |
| WGAZ3719 | Woodgate | Verified |
| 370-Z-121A | Fairey Arlon | Verified |
| 370-Z-101A | Fairey Arlon | Verified |
| 370-L-121A | Fairey Arlon | Verified |
| 370-L-101A | Fairey Arlon | Verified |
| FC5031Q005BS | Finn | Verified |
| FC5031F005XS | Finn | Verified |
| FC5031Q005XS | Finn | Verified |
| AFKOVL976 | Airfil | Verified |
| H370Z1-005BN | Hydac | Verified |
Application & Compatibility
The HY-PRO HP37L4-6MB 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. Nitrile (Buna-N) seals provide compatibility with standard petroleum-based fluids and mineral oils.
The 450 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 HP37L4-6MB?
What are the dimensions of the Hy-Pro HP37L4-6MB?
What seal material does the Hy-Pro HP37L4-6MB use?
Is there a cross-reference for the Hy-Pro HP37L4-6MB?
What is the collapse pressure rating of the Hy-Pro HP37L4-6MB?
What is the operating temperature range for the Hy-Pro HP37L4-6MB?
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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