A-B1801397-AI GASKET-AIR CLEANEROne New Aftermarket Replacement Air Cleaner Gasket Fits Briggs and Stratton (Fits Briggs & Fits Stratton) Small Engines This aftermarket replacement air cleaner gasket seals the air cleaner assembly to the engine, preventing unfiltered air, dirt, and debris from bypassing the air filter and entering the engine. A properly seated air cleaner gasket is essential for maintaining clean airflow and protecting engine internals during operation. Fits Briggs