What is a Filter Cross-Reference?
A filter cross-reference identifies replacement filter elements from one manufacturer that are dimensionally and functionally compatible with elements from another. A valid cross-reference matches the original in outside diameter, inside diameter, length, micron rating, beta ratio, media type, seal material, and collapse pressure.
What Makes a Valid Cross-Reference
A proper cross-reference verifies physical dimensions (OD, ID, length) within tolerance for proper housing fit, seal material compatibility, end cap configuration (thread, flange, or bayonet), micron rating AND beta ratio equivalence, collapse pressure that meets or exceeds the original, and media compatibility with the fluid type. Failing to verify any of these can result in bypass leakage, inadequate filtration, or catastrophic element failure.
Common Cross-Reference Pitfalls
The most common mistakes are matching on micron rating without verifying beta ratio, ignoring seal material differences (NBR seals fail in phosphate ester fluids that require FKM), and substituting a return-line collapse rating element into a pressure-line application. Always verify all specifications, not just the micron rating.
VerifiedFilters Database
VerifiedFilters maintains 280,000+ cross-references across 800+ manufacturers, verified for dimensional and performance compatibility. Each cross-reference includes a confidence level and the specifications that were compared during validation. Search our database or request a free cross-reference report.
Reference Table
| Specification | Must Match? | Risk if Wrong |
|---|---|---|
| Outside diameter (OD) | Exact | Element won’t fit housing |
| Inside diameter (ID) | Exact | Bypass around element |
| Overall length (OAL) | Exact | Seal leakage, bypass |
| Micron rating + beta ratio | Equivalent | Inadequate filtration |
| Seal material | Compatible | Seal degradation, leakage |
| Collapse pressure | ≥ Original | Element collapse, system damage |
Frequently Asked Questions
How do I find a cross-reference for my filter?
Are aftermarket filter cross-references as good as OEM?
Related Specifications
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