Briggs and Stratton 595660 The Briggs & Stratton 595660 is a genuine OEM air cleaner cover designed to protect the air filter on small engines. It is a common replacement part for 500, 550E, and 550EX Series engines often found on walk-behind lawn mowers. Key Features and Compatibility This part is specifically engineered to secure the foam air filter (typically part number 799579) to the engine’s air cleaner base. Engine Series: Compatible with 08P500, 09P600, and 09P700 series engines. Material: Durable, lightweight black ABS plastic. Installation: Designed for a tool-free replacement, allowing you to snap it directly onto the air cleaner housing. Function: Protects the intake system from debris and helps maintain engine efficiency.