Briggs Stratton part number 799579. Check the part description and illustrated diagrams to ensure the part is a proper replacement. This foam air filter element provides superior protection against the destructive effects of dirt ingestion. This Briggs Stratton part ensures proper fit and performance to maintain the life of your Briggs Stratton engine. Before ordering, please verify product compatibility by consulting your engine's owner's manual or parts list. These documents are available on the Briggs Stratton website