The Genuine Briggs & Stratton 398349 Muffler Adaptor is a high-quality replacement part designed specifically for lawn mowers produced by Briggs & Stratton. This adapter allows for easy installation of a muffler on the lawn mower to reduce noise levels and ensure optimal performance. Made by the trusted brand Briggs & Stratton, this muffler adaptor is a reliable and durable solution for maintaining your lawn mower's functionality.