Key Takeaways
- FRAM's official cross reference tool is available free on the FRAM website and lets you search by vehicle year, make, and model or by filter part number.
- Your vehicle's owner manual lists the correct filter specification, which you can then cross-reference to find FRAM and other brand equivalents.
- Auto parts retailers like AutoZone, O'Reilly, and NAPA maintain their own cross reference databases, which are often searchable online without creating an account.
- Filter cross references are based on physical dimensions and flow ratings, so two filters with the same cross reference will fit the same engine and perform the same function.
- Cross reference charts do not account for filter quality, warranty, or price — they only confirm mechanical compatibility.
How FRAM's Official Cross Reference Works
FRAM maintains a searchable cross reference tool on its corporate website at fram.com. You can search by your vehicle's year, make, and model, and the tool returns the correct FRAM filter part number for your engine. You can also search by entering a part number from any manufacturer — FRAM, Motorcraft, Purolator, Bosch, or others — and it shows you the FRAM equivalent.
The tool is free and does not require registration. Results include the filter's part number, a brief description of its process, and sometimes a link to retailers that stock it. This is the most direct way to confirm what FRAM recommends for your specific vehicle, and it is the baseline against which other cross references should be checked.
Using Your Owner Manual and Current Filter
Your vehicle's owner manual specifies the correct oil filter by part number and sometimes by brand. If you have the manual, look in the maintenance section under "oil and filter" or "fluids and capacities." The manual will list one or more approved part numbers — often the OEM (original equipment manufacturer) filter and sometimes alternatives.
If you do not have the manual, you can find it free on manufacturer websites or through sites like ManualsLib. Once you have the correct specification, you can cross-reference that part number against FRAM and other brands. If you already have a filter installed in your vehicle, you can read its part number directly from the canister and use that as your starting point for a cross reference search.
Cross Reference Databases at Auto Parts Retailers
AutoZone, O'Reilly Auto Parts, NAPA, and Advance Auto Parts all maintain searchable cross reference tools on their websites. These tools typically let you search by vehicle year, make, and model, or by entering a part number. Most do not require you to create an account or provide personal information.
Retailer databases often show multiple equivalent filters from different brands side by side, with prices and availability at nearby locations. This makes them useful for comparing cost and stock. However, retailer databases are maintained by the retailers themselves and may prioritize their own house brands or the filters they stock most heavily. Cross-checking results against FRAM's official tool or a second retailer's database reduces the risk of error.
What a Cross Reference Actually Means
A cross reference confirms that two filters have the same physical dimensions (diameter, height, thread size) and the same flow rating (how much oil can pass through per minute at a given pressure). It does not mean the filters are identical in construction, materials, or performance beyond those specs. Two filters with the same cross reference will both fit your engine and both allow oil to flow at the correct rate.
Cross references do not account for filter media quality, bypass valve design, or longevity. A FRAM filter and a Mobil 1 filter might have the same cross reference and fit the same engine, but they may differ in how long they last before clogging or how well they trap fine particles. The cross reference guarantees mechanical fit and basic function, not equivalence in durability or performance.
When Cross References Differ Between Sources
Occasionally, different sources will show different cross references for the same filter. This usually happens because manufacturers update their product lines, discontinue old part numbers, or because a source has outdated information. If you find conflicting results, check the most recent information from FRAM's official tool first, then verify against at least one major retailer's database.
If a part number is very old or for an uncommon vehicle, you may find fewer cross references available. In that case, contact FRAM customer service directly with your vehicle's year, make, model, and engine size. They can confirm the correct filter and any modern equivalents. The same applies if you are trying to cross-reference a filter from a brand that is no longer in business — FRAM or a major retailer can often identify what modern filter replaces it.
Using Cross References to Compare Prices and Availability
Once you know your filter's part number and its cross references, you can search for that part number across multiple retailers to compare price and stock. A filter that costs $12 at one store might cost $18 at another, or might be out of stock locally but available for delivery. Knowing all the equivalent part numbers lets you search for the cheapest or most available option without sacrificing fit or function.
Keep in mind that price differences sometimes reflect differences in filter quality or warranty, not just retailer markup. A cheaper filter may be an older design or a house brand with a shorter warranty. Reading customer reviews and checking the warranty terms can help you decide whether the price difference is worth it, or whether a more expensive filter offers better value over time.
Frequently Asked Questions
Can I use a filter from a different brand if it has the same cross reference?
Yes. A cross reference means the filter has the same physical dimensions and flow rating, so it will fit your engine and function correctly. The filter may differ in quality or longevity, but it will not damage your engine or cause leaks. Check your owner manual to see if it lists any brand restrictions — most do not.
What if the cross reference chart shows multiple FRAM filters for my vehicle?
Multiple results usually mean FRAM offers filters at different price points or with different features (synthetic media, extended life, etc.) for the same engine. Your owner manual or current filter will specify which one is correct for your vehicle. If you are unsure, contact FRAM or your vehicle's manufacturer to confirm.
Do I need to update my cross reference if my engine has been modified?
Yes. Engine modifications like turbocharging or displacement increases can change the correct filter specification. Consult the shop that performed the modification or contact FRAM with details of your changes. Using the wrong filter for a modified engine can reduce oil flow or cause leaks.
Is a cross reference the same as a warranty or may provide that the filter will work?
No. A cross reference confirms mechanical fit and basic function. It does not may provide performance, longevity, or that the filter will work correctly in your specific vehicle. Always verify the part number against your owner manual and the retailer's product description before purchase.