Parker
The Parker G04378 is a 4µm hydraulic filter element. It measures 3.62" OD x 3.608" ID x 8" long. Collapse pressure rating is 290 PSID.
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Technical specifications for the Parker G04378 filter element. Data sourced from manufacturer catalogs and verified against OEM documentation.
| Specification | Value |
|---|---|
| Performance | |
| Micron Rating | 4µm |
| Collapse Rating | 290 PSID |
| Dimensions | |
| O.D. (inches) | 3.62" |
| O.A.L. (inches) | 8" |
| I.D. (inches) | 3.608" |
Last verified: February 2026
The PARKER G04378 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.
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.
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