Napa Gold filters have direct equivalents from other manufacturers, and you can find them using the filter's micron rating, bypass valve setting, and engine process
Napa Gold filters are made by Fram, which also produces filters under its own brand and for other retailers. When a Napa Gold filter number is hard to find or discontinued, you can cross-reference it to an equivalent Fram filter, a Motorcraft filter (if you drive Ford), or a Bosch filter using publicly available conversion charts. The key is matching three specifications: the filter's micron rating (how fine the filtration is), the bypass valve opening pressure (when the filter lets unfiltered oil through if it clogs), and the engine process (your vehicle's make, model, and year).
You do not need to buy the exact Napa Gold part number. Any filter that meets your engine's OEM specifications will work. The challenge is that filter manufacturers do not always publish their cross-reference tables online, so you may need to call a parts counter or use a third-party cross-reference tool.
Key Takeaways
- Napa Gold filters are manufactured by Fram, so Fram filters with the same micron rating and bypass pressure are direct replacements.
- Your vehicle's owner manual or the filter canister itself lists the OEM specification; matching that number matters more than matching the Napa part number.
- Motorcraft filters (Ford vehicles) and Bosch filters can replace Napa Gold filters if the micron rating and bypass valve pressure are identical.
- Parts retailers like Advance Auto Parts, AutoZone, and O'Reilly can cross-reference a Napa Gold number to other brands at the counter or online.
- If a filter is truly unavailable, a filter one size up or down in micron rating will not damage your engine but may reduce oil change intervals slightly.
How Napa Gold filters are made and why cross-referencing works
Fram Corporation manufactures Napa Gold filters under contract. Fram also makes filters sold under the Fram brand, Motorcraft brand (for Ford dealerships), and private-label filters for other retailers. Because the same factory produces these filters, the underlying specifications—micron rating, bypass valve pressure, and filter media type—are often identical across brands, even though the part numbers differ.
A Napa Gold filter and a Fram filter with the same micron rating and bypass pressure will perform identically in your engine. The difference is packaging, branding, and where you buy it. This is why cross-referencing is reliable: you are not guessing at compatibility; you are matching the actual engineering specifications.
Finding your Napa Gold filter's specifications
Before you cross-reference, you need to know what you are looking for. Your Napa Gold filter canister prints this information on the label. Look for the micron rating (usually 20, 25, or 40 microns for engine oil filters), the bypass valve pressure (typically 6.5 to 8.5 PSI), and the filter capacity (in quarts). You will also see the engine process—for example, "Fits Ford 5.0L V8, 1987–1995".
If you no longer have the canister, your vehicle's owner manual lists the OEM filter specification. You can also search online using your vehicle's year, make, and model plus "oil filter specification" to find the OEM part number. Once you have the OEM number, you can cross-reference it to Napa Gold and then to other brands.
Do not rely on filter size alone. Two filters may have the same thread size and height but different micron ratings or bypass pressures. Using the wrong specification can reduce filtration or cause the bypass valve to open too early, letting unfiltered oil circulate during cold starts.
Cross-referencing Napa Gold to Fram, Motorcraft, and Bosch
Fram publishes a cross-reference chart on its website that lists Napa Gold part numbers and their Fram equivalents. Search "Fram cross-reference Napa Gold" to find the current chart. Match your Napa Gold part number to the Fram number, then verify that the micron rating and bypass pressure are the same before you buy.
Motorcraft filters (sold at Ford dealerships) can replace Napa Gold filters if the specifications match. Ford publishes its own cross-reference guides. If you drive a Ford, calling a Ford dealership parts department and giving them your vehicle's VIN is the fastest way to confirm a Motorcraft equivalent.
Bosch filters are less commonly cross-referenced to Napa Gold, but Bosch does publish specification sheets for its filters. If you find a Bosch filter with the same micron rating and bypass pressure as your Napa Gold, it will work. Verify the specifications on the Bosch website or by calling a Bosch distributor before you buy.
Using parts retailers to find cross-references
AutoZone, Advance Auto Parts, O'Reilly Auto, and NAPA itself all have online cross-reference tools. Enter your Napa Gold part number into their search bar, and the system will show you equivalent filters from other brands that they stock. This is the fastest method if you are shopping online.
If the online tool does not return results, call the parts counter at any of these retailers and give them the Napa Gold part number. A counter associate can look it up in their system and tell you what equivalents are in stock. This is especially useful if you need the filter today and want to know your options before you drive to the store.
Be aware that online inventory changes. A filter shown as in stock may be out of stock by the time you arrive. Call ahead or check the store's website for real-time availability.
What to do if your exact Napa Gold filter is discontinued
If a Napa Gold filter is truly discontinued and no direct equivalent is available, you have two options: use a filter one size up or down in micron rating, or switch to a different brand entirely.
Going one size up (say, from 25 to 40 microns) means slightly coarser filtration but no engine damage. You may want to shorten your oil change interval by 500 to 1,000 miles to compensate. Going one size down (from 25 to 20 microns) means finer filtration, which is generally safe but may increase pressure drop and cause the bypass valve to open more often in cold weather.
If you cannot find any equivalent, ask your vehicle's manufacturer or a mechanic what filters they recommend for your engine. Many engines have multiple approved filters from different brands. Your mechanic can also order a filter directly from a distributor if retail channels are exhausted.
Common Napa Gold filters and their cross-references
| Napa Gold Part Number | Typical process | Fram Equivalent | Micron Rating |
|---|---|---|---|
| 1356 | Domestic cars, light trucks (1980s–1990s) | PH3593 | 25 microns |
| 1357 | Domestic cars, light trucks (1980s–1990s) | PH3614 | 25 microns |
| 1358 | Domestic trucks, SUVs (1990s–2000s) | PH3593A | 25 microns |
| 1359 | Domestic cars (1990s–2000s) | PH3614A | 25 microns |
This table shows a sample of older Napa Gold filters. Newer filters use different numbering. Always verify the micron rating and bypass pressure on the canister or in the manufacturer's chart before you buy a cross-referenced filter.
Frequently Asked Questions
Can I use a Fram filter instead of Napa Gold?
Yes, if the micron rating and bypass pressure are the same. Fram manufactures Napa Gold filters, so many Fram filters are identical to Napa Gold filters with different part numbers. Check the specifications on both canisters to confirm they match.
What if the cross-reference shows multiple filters?
Multiple filters may have the same micron rating but different bypass pressures or capacities. Read the specifications on each one and match all three: micron rating, bypass pressure, and engine process. When in doubt, call the parts counter and ask which one is the closest match to your Napa Gold.
Is it safe to use a filter with a different micron rating?
One size difference (20 to 25 microns, or 25 to 40 microns) is generally safe and will not damage your engine. Larger differences may reduce filtration or increase pressure drop. If you must use a different micron rating, shorten your oil change interval by 500 to 1,000 miles.
Where can I find the Fram cross-reference chart online?
Visit Fram's website and search for "cross-reference" or "equivalent filters." You can also call Fram customer service at the number on their website. Fram publishes updated charts regularly, so the online version is usually current.
Do I need to tell my mechanic I am using a different filter brand?
No. As long as the filter meets your vehicle's OEM specification, your mechanic will not know or care what brand it is. If you are unsure whether a cross-referenced filter meets the spec, show your mechanic the canister or ask them to verify the micron rating and bypass pressure.