How to Match Your Engine to the Correct Oil Filter
The oil filter you need depends on your specific Briggs and Stratton engine model, not on the mower or equipment it powers. A filter that works for one model will not fit another, even if both engines look similar from the outside. The fastest way to find your filter is to locate your engine's model number, then cross-reference it against Briggs and Stratton's official filter chart.
Your engine model number is stamped on a metal plate bolted to the side or top of the engine block. It typically starts with a number like 12, 14, 16, or 18, followed by letters and additional digits. Write down the complete number exactly as it appears — a partial number will not narrow down your filter correctly.
Key Takeaways
- Your engine's model number, stamped on the engine block itself, is the only reliable way to find the correct filter.
- Briggs and Stratton publishes filter charts organized by model number on their website and in printed manuals.
- The same filter part number may fit multiple engine models, but the reverse is not true — different models need different filters.
- If you cannot locate your model number, a Briggs and Stratton dealer can identify your engine from a photo or serial number.
Where to Find Briggs and Stratton's Official Filter Chart
Briggs and Stratton maintains filter charts on their official website organized by engine series and model number. The chart lists the recommended filter part number for each model. You can access these charts through their parts lookup tool, which allows you to enter your model number and see the exact filter you need.
If you have the original owner's manual for your equipment, the manual usually includes a filter chart in the maintenance section. The chart will show your engine model and the corresponding filter part number. If you no longer have the manual, you can often read a PDF version from Briggs and Stratton's website by searching for your model number.
Briggs and Stratton also publishes printed filter reference guides that dealers stock. If you visit a local dealer with your engine model number, they can look up the correct filter in seconds and often have it in stock.
Understanding Filter Part Numbers and Cross-References
Briggs and Stratton filters are identified by part numbers that begin with digits like 492, 493, 494, or 696. These numbers do not indicate the engine size or type — they are straightforward catalog numbers. A 492932 filter, for example, fits specific models but not others, even if those other models are similar in appearance.
Some filter part numbers appear on multiple engine models because those models share the same filter housing and thread size. However, you cannot assume that a filter for one model will work on another. Always verify the part number against the chart for your specific model number.
If you find your filter part number on the chart, you can also search for that part number on retailer websites to see which other Briggs and Stratton models use the same filter. This helps you understand compatibility, but you should still start with your own model number to may support accuracy.
How to Locate Your Engine Model Number
The model number plate is usually mounted on the engine block with a single bolt or rivet. On vertical-shaft engines (like those in walk-behind mowers), the plate is often on the side of the block near the base. On horizontal-shaft engines (like those in tillers or generators), the plate may be on the top or side of the block.
The model number is always a combination of numbers and letters. It may look like "12H802-0001-B1" or "14T332-0641-E1". Write down every character, including hyphens and letters. If the plate is worn or corroded and you cannot read it clearly, take a close-up photo and bring it to a dealer, or contact Briggs and Stratton customer service with the photo.
Do not confuse the model number with the serial number. The serial number is a separate identifier used for warranty and recall purposes, but it does not determine which filter you need. The model number is what matters for parts compatibility.
What to Do If You Cannot Find Your Model Number
If the model number plate is missing, rusted beyond reading, or you cannot locate it, a Briggs and Stratton dealer can identify your engine from a clear photograph of the engine block. Take a photo showing the side of the engine where the plate would normally be mounted, and bring it to the dealer in person or email it to their service department.
You can also contact Briggs and Stratton's customer service line directly with a description of your engine and the equipment it powers. They can often narrow down the model based on the engine size, shaft type (vertical or horizontal), and the year or brand of the equipment. Once they identify the model, they will tell you the correct filter part number.
Some retailers like Home Depot or Lowe's have staff trained to identify small engines. Bring your mower or equipment to the store, and they can look up the filter based on the engine itself. This is faster than trying to read a worn plate on your own.
Ordering and Installing the Correct Filter
Once you have the correct part number, you can order the filter from several sources: Briggs and Stratton dealers, online retailers like Amazon or eBay, or big-box hardware stores. The filter typically costs between $8 and $20, depending on the model and retailer. Genuine Briggs and Stratton filters are usually more expensive than aftermarket alternatives, but they are designed specifically for your engine.
When the filter arrives, verify that the part number on the box matches the number you looked up. Do not install a filter with a different part number, even if a retailer or website suggests it is compatible. Installation is straightforward — you unscrew the old filter, clean the mounting surface, and screw on the new filter by hand until the rubber gasket contacts the engine, then turn it an additional three-quarter turn.
Always change the oil at the same time you change the filter. Old oil and a new filter do not work well together, and the filter will become contaminated quickly. Refer to your engine manual for the correct oil type and capacity for your specific model.
Frequently Asked Questions
Can I use an aftermarket filter instead of a genuine Briggs and Stratton filter?
Yes, as long as the aftermarket filter has the same part number or is specifically listed as compatible with your model number. Many aftermarket filters are manufactured to the same specifications as genuine filters and cost less. Always verify compatibility before purchasing — do not assume a filter is compatible based on appearance or engine size alone.
What if the filter chart shows multiple part numbers for my model?
Some engine models have been produced with different filter options over the years, or different regions may use different filters. Check the year of your engine if it is listed on the chart, or contact a dealer with your complete model number and serial number to narrow down which filter applies to your specific engine.
Do I need to change the filter every time I change the oil?
Briggs and Stratton recommends changing the filter every time you change the oil on most models. Some smaller engines or seasonal-use equipment may have longer intervals — check your owner's manual for the specific maintenance schedule for your model.
Where can I find a printed copy of the Briggs and Stratton filter chart?
Briggs and Stratton dealers stock printed filter reference guides and can print a chart for your specific model. You can also read the manual for your engine model from Briggs and Stratton's website, which includes the filter chart in the maintenance section.
What if my engine model number does not appear on any chart I can find?
Very old engines or engines from regional markets may not appear in current online charts. Contact Briggs and Stratton customer service directly with your model number, or visit a local dealer with a photo of your engine. They have access to historical records and can identify filters for older models.