Western
Western 551686
Industrial filter element
Western 551686 specifications
The Western 551686 is a 4µm dualglass filter element. It measures 3.1" OD x 1.724" ID x 8" long. Filtration efficiency is rated at β1000 per ISO 16889. Seals are Fluorocarbon (Viton). Collapse pressure rating is 290 PSID. 24 verified cross-references are available from aftermarket manufacturers. Specifications verified. Last reviewed: June 2026
Physical fit
- Outer Diameter (O.D.)
- 3.1"Verified via cross-reference
- Inner Diameter (I.D.)
- 1.724"Verified via cross-reference
- Overall Length
- 8"Verified via cross-reference
- Micron Rating
- 4µmVerified via cross-reference
- Seal Material
- Fluorocarbon (Viton)Verified via cross-reference
- Connection / Thread
- Not yet verified from an OEM source
Performance: Western published values
These are Western's own published numbers. Performance specs differ by brand and are never inherited across cross-references.
- Efficiency (ISO 16889)
- β1000
- Media Type
- Dualglass
- Collapse Rating
- 290 PSID
What replaces the Western 551686?
24 published cross-references on file. Select to expand.
What replaces the Western 551686?
24 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 |
|---|---|---|
| HP60L8-3MV | Hy-Pro | Verified |
| HP60L8-3MB | Hy-Pro | Verified |
| SF9600-8-3UM | Swift Filters | Sourced |
| SF9600-8-3UMV | Swift Filters | Sourced |
| DX2-9600-8-5UM | Donaldson | Sourced |
| DX2-9600-8-5UM-V | Donaldson | Sourced |
| P162957 | Donaldson | Sourced |
| P167842 | Donaldson | Sourced |
| P566210 | Donaldson | Sourced |
| 2060599 | Hydac | Sourced |
| 2067319 | Hydac | Sourced |
| 926697 | Parker | Sourced |
| 926697Q | Parker | Sourced |
| 926717 | Parker | Sourced |
| 932285Q | Parker | Sourced |
| 932653Q | Parker | Sourced |
| G01976 | Parker | Sourced |
| G03436 | Parker | Sourced |
| HC9600FCP8H | Pall | Sourced |
| HC9600FCP8Z | Pall | Sourced |
| HC9600FDP8H | Pall | Sourced |
| HC9600FDP8Z | Pall | Sourced |
| HC9600FKP8H | Pall | Sourced |
| HC9600FKP8Z | Pall | Sourced |
Application & Compatibility
The WESTERN 551686 is designed for use in hydraulic and lubrication filtration systems. With a 4µm rating, this element is suitable for servo valve protection and high-precision hydraulic systems. Fluorocarbon (Viton) seals provide compatibility with petroleum-based fluids, synthetic fluids, phosphate esters, and water-glycol mixtures.
The 290 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 Western 551686?
What are the dimensions of the Western 551686?
What seal material does the Western 551686 use?
Is there a cross-reference for the Western 551686?
What is the collapse pressure rating of the Western 551686?
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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