The Briggs & Stratton 798897 is a cyclonic-style, pleated-paper air filter designed for heavy-duty protection of V-Twin engines. It is commonly used on 23 to 28 HP Commercial Series engines and Intek V-Twin models found on zero-turn mowers and riding tractors. Genuine OEM Option The Briggs & Stratton 798897 Air Filter is the original equipment manufacturer (OEM) part. It is specifically engineered to ensure a perfect fit and maintain the emission standards of your engine. This filter effectively blocks dirt and debris from entering the combustion chamber, which is critical for extending the life of high-horsepower commercial engines.