Stens Air Filter, Briggs & Stratton 393957S, ea, 1

Durable replacement air filter designed to keep dirt, dust, and debris from entering the engine while maintaining proper airflow for optimal performance. Compatible with select Briggs & Stratton single-cylinder engines commonly found on lawn mowers, garden tractors, generators, and other outdoor power equipment. Direct replacement for Briggs & Stratton OEM 393957S, helping improve engine efficiency, reliability, and service life through routine maintenance.