What a Napa cross reference chart does and why you need one
A Napa cross reference chart is a lookup table that matches filters sold under other brand names to their Napa equivalents. If you know your vehicle needs a Fram, Motorcraft, or Bosch filter but want to buy the Napa version instead, the chart tells you which Napa part number to order. The chart works in both directions — you can also start with a Napa part number and find what other brands sell the same filter.
You need one because filter manufacturers do not always print their own part numbers on the box. Your owner's manual might list a Motorcraft number, a shop receipt might show a Fram code, or an online parts catalog might display a Bosch equivalent. Without a cross reference, you could order the wrong part or waste time calling stores to confirm compatibility.
Napa maintains these charts because they stock filters from multiple manufacturers and want customers to find the Napa match quickly. The chart does not mean the filters are identical inside — different brands use different media and construction — but it does mean they fit the same engine and meet the same size and thread specifications.
Key Takeaways
- Napa cross reference charts match filter part numbers across brands so you can find the Napa equivalent of a Fram, Motorcraft, Bosch, or other manufacturer's filter.
- You can search by the original part number you have or by your vehicle's year, make, and model to find what Napa sells for that engine.
- The chart confirms that filters are mechanically compatible, but different brands may use different filter media and construction methods.
- Napa's website and in-store systems both include cross reference data, and store staff can look up the match if you bring in the original part number or receipt.
Where to find Napa's cross reference information
Napa publishes cross reference data in three places: their website at napa.com, their in-store computer system, and printed cross reference guides available at some locations. The website search is the fastest if you already have a part number from another brand. Enter the competitor's part number in the search box, and Napa's system will return the matching Napa part number, price, and availability at nearby stores.
If you do not have a specific part number, use Napa's vehicle selector tool. Enter your vehicle's year, make, model, and engine size, and the system will show you the oil filter options Napa stocks for that engine. This route is useful if you have lost your receipt or do not remember which brand you bought last time.
At a Napa store, hand the counter staff the original part number or a photo of the box, and they can cross reference it on their system in seconds. Many stores keep printed cross reference booklets behind the counter as well, though these are updated less frequently than the online version and may not include the newest part numbers.
How to read a cross reference chart
A typical Napa cross reference chart lists competitor part numbers in one column and the corresponding Napa part number in the next. Some charts also include the vehicle process (the year, make, and model the filter fits) and the filter type — oil, air, cabin air, or transmission. The layout varies slightly depending on whether you are looking at a printed guide or a digital search result, but the core information is always the same: original part number, Napa equivalent, and what vehicle it goes in.
When you find your part number, verify the vehicle process before you order. A Fram PH8A might cross to a Napa 1056, but only if your vehicle is a 2010–2015 Toyota Camry. If you drive a different model, the same Fram number might cross to a different Napa part. Always confirm the year, make, and model listed on the chart match your vehicle.
Some charts include multiple Napa options for a single competitor part number. This usually means the competitor part was used across several model years or engines, and Napa stocks different filters for each process. The chart will specify which Napa number goes with which vehicle, so read the process column carefully.
Common filter brands and their Napa cross references
Fram is one of the most commonly cross referenced brands because it is sold at many retailers and has been in use for decades. Fram part numbers typically start with "PH" for oil filters. Motorcraft filters, sold at Ford dealerships, usually start with "FL" or "CM". Bosch filters often begin with "3" or "6". AC Delco filters, the General Motors equivalent, typically start with "PF" or "ACR". Knowing these prefixes helps you identify which brand you are looking at before you search.
Wix, Purolator, and Mobil 1 filters are also commonly cross referenced. Each brand uses its own numbering system, so there is no pattern that works across all of them. The cross reference chart is the only reliable way to match them. If you have a part number from any of these brands, Napa's system will find the match.
Aftermarket and store-brand filters — such as Autozone's Valucraft or Walmart's Great Value — can also be cross referenced, though they are less commonly stocked at Napa. If you bring in a store-brand part number, Napa staff may need to look it up in a more detailed database or contact their supplier, but the information is usually available.
Why cross reference matters when buying filters
Using a cross reference chart prevents you from buying a filter that does not fit your engine. Filters vary by thread size, bypass valve pressure, and overall dimensions. A filter that is one size too large will not screw on; one that is too small will leak. The cross reference confirms that the Napa filter you are buying has the same specifications as the original part you are replacing.
Cross referencing also helps you compare prices across brands. If you know that a Fram PH8A is equivalent to a Napa 1056, you can check the price of each and decide which one to buy. Napa filters are often competitively priced, but not always the cheapest option, so the cross reference gives you the information you need to shop around.
Finally, cross referencing is useful if you are switching brands for a specific reason — perhaps you want a synthetic filter, a filter with a higher bypass pressure, or a filter from a brand you trust. The chart lets you find the Napa equivalent of whatever you were using before, so you can make an informed choice about whether to stick with the same filter or try something different.
What to do if you cannot find a cross reference match
If Napa's website does not return a result for a part number you entered, the part may be discontinued, regional, or from a brand Napa does not stock. Try searching by your vehicle's year, make, and model instead. This will show you all the filters Napa carries for your engine, and you can compare them to the original part you have.
If you still cannot find a match, call a Napa store or visit in person. Store staff have access to more detailed cross reference databases than the public website and can often find obscure or older part numbers. Bring the original part number, the vehicle year and model, and the engine size if you have it. This information helps staff narrow down the search.
In rare cases, a filter may not have a direct Napa equivalent because it was sold only by a specific dealership or retailer. In this situation, Napa staff can help you identify the correct filter for your vehicle by engine size and type, even if it is not a direct cross reference match. The goal is to find a filter with the same thread size, bypass pressure, and dimensions, regardless of the original brand.
Frequently Asked Questions
Can I use a filter from a different brand if it has the same cross reference number?
Yes. A cross reference number means the filters are mechanically compatible — they fit the same engine and meet the same size and thread specifications. Different brands may use different filter media or construction, but the physical fit is the same. If you prefer one brand over another, the cross reference confirms you can make the switch safely.
Do Napa cross reference charts include air filters and cabin air filters, or just oil filters?
Napa cross reference data covers all filter types — oil, air, cabin air, and transmission. The process is the same: enter the competitor's part number or your vehicle information, and the system will show you the Napa equivalent for whichever filter type you need.
What if the cross reference chart shows multiple Napa numbers for the same competitor part?
This usually means the competitor part was used across different model years or engine sizes. Check the vehicle process column on the chart to find which Napa number matches your specific year, make, and model. Ordering the wrong number from the list could result in a filter that does not fit your engine.
Is a Napa filter the same quality as the original filter that came with my vehicle?
Napa filters meet the same size and pressure specifications as original equipment, but quality and construction can vary by product line. Napa stocks filters at different price points, from economy options to premium synthetic filters. The cross reference confirms compatibility, not quality — you will need to compare the specific Napa product to the original to decide if it meets your standards.
Can I cross reference a filter if I only have a photo of the box but not the part number?
Yes. Bring the photo to a Napa store, and staff can usually identify the brand and part number from the box design. If the photo is clear enough to read the part number, you can also search online. If the number is not visible, provide your vehicle year, make, and model, and Napa can tell you what filters fit your engine and help you identify which one you had before.