How to find a replacement oil filter that fits your Briggs and Stratton engine
A cross reference is a list that matches one manufacturer's part number to the equivalent part from another manufacturer. For Briggs and Stratton engines, a cross reference tells you which filters from brands like Fram, Kohler, or Purolator will work in place of the original Briggs and Stratton filter. You need this because the original part may be harder to find, more expensive, or straightforward unavailable at your local hardware store.
The most direct way to find a cross reference is to look up your engine's model number on the Briggs and Stratton website or in your owner's manual, find the original filter part number, and then search that number on a parts retailer's site like Amazon, Tractor Supply, or Ace Hardware. Many of these sites show compatible filters automatically. Alternatively, you can call a local small-engine repair shop — they work with cross references daily and can tell you what's in stock.
Key Takeaways
- Your engine's model number is printed on the engine itself and is the starting point for finding the correct original filter part number.
- Cross references are most reliable when you search the original Briggs and Stratton part number on a retailer's website, which will show you compatible alternatives.
- Common compatible brands include Fram, Kohler, Purolator, and Wix, but not every filter from these brands will fit — the part number must match the cross reference.
- A small-engine repair shop can look up the cross reference for you in minutes and often has filters in stock that will work.
- Using a filter that does not match the cross reference can cause oil leaks, bypass the filter entirely, or damage the engine.
Where to find your engine's model number
The model number is stamped or printed directly on the engine block, usually on a metal tag or label. On horizontal-shaft engines (the kind on lawn mowers), look on the side of the engine near the base. On vertical-shaft engines (like those on tillers or pressure washers), check the top or side of the engine housing.
Write down the entire model number exactly as it appears — it often includes letters and numbers together, like "123456-0123-B1". This number is what you will use to find the correct oil filter part number in the Briggs and Stratton parts catalog.
How to look up the original filter part number
Go to the Briggs and Stratton parts website (parts.briggsandstratton.com) and enter your engine's model number in the search box. The site will show you an exploded diagram of your engine with all the parts labeled. Find the oil filter in the diagram and click on it to see the part number.
If you do not have internet access or prefer not to use the website, you can call a Briggs and Stratton dealer or a local small-engine repair shop with your model number. They can look it up in their parts system and give you the part number over the phone. Many shops will also tell you whether they have that filter in stock or can order it for you.
Using a cross reference chart or tool
Once you have the original Briggs and Stratton part number, you can search it on a parts retailer's website like Tractor Supply, Ace Hardware, or Amazon. These sites often show a "compatible with" or "cross reference" section that lists other brands' part numbers that will work in your engine.
You can also search the part number directly on Google — many cross reference databases and forums will appear. Sites like RockAuto and PartsGeek maintain cross reference databases for small-engine parts. Enter the Briggs and Stratton part number and the site will show you equivalent filters from other manufacturers, along with prices and availability.
Do not rely on a cross reference that does not show the original part number clearly. A trustworthy cross reference will always list the Briggs and Stratton part number first, then show which other part numbers are equivalent.
Common compatible filter brands
Fram, Kohler, Purolator, Wix, and Stens are the brands most often listed as cross references for Briggs and Stratton filters. However, not every filter from these brands will work — the specific part number must match the cross reference. A Fram filter with one part number may fit your engine, while a different Fram filter will not.
When you find a compatible filter at a retailer, check that the part number matches what the cross reference shows. The filter should also have the same thread size and bypass valve rating as the original. If you are unsure, ask the retailer or a small-engine repair shop to confirm the match before you buy.
What happens if you use the wrong filter
Using a filter that does not match the cross reference can cause several problems. If the filter is too large or has the wrong thread size, it may not screw on properly, causing oil to leak out during operation. If the filter is too small or has a different bypass valve, oil may bypass the filter entirely without being cleaned, which damages the engine over time.
In some cases, an incompatible filter may fit initially but come loose as the engine vibrates, leading to sudden oil loss and engine failure. Taking a few minutes to confirm the cross reference before you buy saves you from a costly repair later.
Where to buy cross-referenced filters
Local options include small-engine repair shops, Tractor Supply, Ace Hardware, and Home Depot. These stores often have filters in stock and staff who can confirm the cross reference for you on the spot. Calling ahead to check availability saves you a trip.
Online retailers like Amazon, RockAuto, and eBay offer a wider selection and often lower prices, but you will need to wait for shipping. When ordering online, double-check that the seller's description matches the cross reference you found, and read the reviews to see whether other customers report the filter fitting their Briggs and Stratton engine.
Frequently Asked Questions
Can I use any oil filter as long as it screws on?
No. The thread size, bypass valve rating, and filter media must match the original specification. A filter that screws on may still leak, bypass oil without filtering it, or come loose during operation. Always confirm the cross reference before buying.
What if I cannot find the cross reference for my engine?
Call a small-engine repair shop with your engine's model number. They have access to cross reference databases and can tell you what filters will work. Many shops will also order the filter for you if they do not have it in stock.
Is a Briggs and Stratton original filter always better than a cross-referenced filter?
Not necessarily. A cross-referenced filter from a reputable brand like Fram or Purolator will perform the same job as the original, as long as the part number matches. The original may cost more straightforward because it carries the Briggs and Stratton name.
How do I know if a filter is actually compatible before I buy it?
Look for the part number on the filter box or product listing and match it to the cross reference you found. If the retailer lists "compatible with" or "cross reference" information, that is another confirmation. When in doubt, ask the retailer or a repair shop to verify the match.
What if the cross reference shows multiple part numbers?
Multiple part numbers in a cross reference usually mean those filters are interchangeable — they have the same specifications and will all work in your engine. You can choose whichever is cheapest or most available. Just make sure the part number you actually buy matches one of the numbers on the cross reference list.