Filter Cross Reference
Search 986K+ cross-reference records across oil, fuel, air, hydraulic, and coolant filters.
Use FilterXRef as your generic lookup hub before you drill into category pages, brand hubs, and exact part matches.
Dedicated oil-filter hub for replacement lookup and exact part pages.
Fuel-system replacement research for diesel and gas applications.
Air-cleaner interchange lookup across major filter brands.
Hydraulic-filter hub for industrial and mobile-equipment maintenance.
Brand hub built for WIX lookup and part-level navigation.
Brand Hubs
Exact brand hubs help FilterXRef route brand-led queries away from the generic homepage and into the correct landing page.
Browse by Category
Engine lubrication filters, spin-on replacements, and service-interval lookup.
Diesel and gasoline fuel-system filter lookup for OEM and aftermarket replacements.
Engine intake and air-cleaner replacement lookup across major filter brands.
Industrial and mobile-equipment hydraulic filter interchange lookup.
Coolant and antifreeze service filter lookup for heavy-duty applications.
Filter Comparison
Use the dedicated comparison hub when two part numbers look similar but you need to inspect overlap before you replace or quote.
Open the dedicated comparison workspace to enter two part numbers, view their replacement lists, and highlight the shared overlap.
Open Comparison ToolAbout FilterXRef
FilterXRef is a generic filter cross reference hub, not just an oil filter homepage. Whether you're looking for a replacement oil filter, fuel filter, air filter, hydraulic filter, or coolant filter, the database is structured to help you move from a broad query into the correct category page, brand hub, and part-level result.
Use FilterXRef as a Hub
- Start on the generic homepage when you only know you need a filter cross reference.
- Move into a category hub when the query is really about oil, fuel, air, or hydraulic filters.
- Open a brand hub when the intent is specifically Baldwin, WIX, MANN, Fleetguard, or Donaldson.
- Use the comparison workspace when you need to inspect two part numbers side by side.
Supported Brands
- Baldwin - approximately 259,000 cross-references
- Mann - approximately 397,000 cross-references
- Wix - approximately 108,000 cross-references
- Fleetguard - approximately 37,000 cross-references
- Donaldson - approximately 185,000 cross-references
How FilterXRef Works
Start with a known part number, OEM reference, or currently installed filter. FilterXRef surfaces the equivalent records we have mapped across major brands, then links you into exact replacement pages, brand hubs, and supporting guides so you can keep researching without starting from zero.
How to Use Cross Reference Results Safely
Use the lookup results to narrow your shortlist, not to skip verification. The safest workflow is: confirm the original application first, compare the candidate part number next, and only then place an order or quote request. That extra check matters most when you are switching brands or sourcing for fleet maintenance.
Frequently Asked Questions
These answers explain what cross-reference data can help with, and where you should still slow down and verify before buying.
What is a filter cross reference?
A filter cross reference connects one part number to equivalent or compatible replacements from another brand. It is a research shortcut, not a final fitment guarantee, so you should still verify the application before buying.
Can I trust cross reference results?
Cross reference results are useful for building a shortlist, especially when you already know the OEM number or current installed filter. The safest process is to verify the application, dimensions, and service requirements against the equipment manual before you swap parts.
How many filters does FilterXRef cover?
FilterXRef currently indexes roughly 986,000 cross-reference records across Baldwin, Mann, Wix, Fleetguard, and Donaldson. That gives you a wide starting point for OEM lookup, sourcing, and replacement research.
When should I verify a replacement before buying?
You should always verify a replacement when the equipment is mission-critical, when the original filter is part of a fleet service program, or when the candidate part number comes from a different brand family. Cross-reference tools narrow the options, but the final check should happen on the application side.
Why do some filter pages show only one result?
Some filter models have only one verified mapping in the current dataset. That does not mean there are no alternatives; it usually means only one cross-reference relationship has been confirmed so far.