K&N parts matching Briggs & Stratton 399959 air filter

The Briggs & Stratton 399959 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Briggs & Stratton air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Provides long life and ease of maintenance
  • Washable and Reusable
Michael, Courtland, Minnesota
There was not a direct cross reference for the filter I had in my field trimmer. The flat outside rim on the new K&N filter was a tad thicker so it took some extra pressure to close the filter box lid, but it'll get used to it I am well pleased with it.
Margaret Gibson, Petersburg, Virginia
Aside from the superiority of K&N air filters, putting one in my mower just makes financial sense. Each disposable filter costs around $10 and I use no fewer than three of them each Summer and sometimes more than that. It's a no brainer to buy the K&N filter for less than one Summer's worth of air filters and never have to buy another. I use your filters in my motorcycles on and off the track and in my truck, and wouldn't consider any other product. What do I think about K&N air filters? I think you should keep up the good work.
Ronaldo Brown, Kansas City, Kansas
I love this product, my lawn mower runs smoother.
33-2238 K&N 33-2238 Replacement Air Filter
List Price: $49.19
Your Price: $30.99