The Briggs and Stratton 390055 Air Cleaner Assembly is a high-quality replacement part designed specifically for lawn mowers produced by Briggs & Stratton. This assembly includes one air cleaner designed to efficiently filter out debris and ensure the smooth operation of the lawn mower engine. With its durable construction and precise design, this air cleaner assembly from Briggs & Stratton is a reliable option for maintaining the performance of your lawn mower.