K&N Powersports Universal Custom Air Filter - Oval Shape 9.313"OD / 2.375 Height E-3988

The K&N replacement air filter for RK Series air cleaner assemblies is designed to enhance horsepower and acceleration while maintaining exceptional filtration capabilities. This washable and reusable air filter is specifically engineered to replace the original air filter in select K&N RK Series air cleaner assemblies for Harley-Davidson motorcycles. The air filter is backed by the renowned K&N Million-Mile Limited Warranty. These K&N powersports performance air filters are particularly well-suited for prolonged use in challenging off-road environments characterized by dirt and dust, ensuring clean carburetion even at high altitudes. Notably, jet changes are generally unnecessary when using a K&N filter element alone. The K&N powersports performance air filters combine high airflow with excellent filtration, offering a washable and reusable solution for enhanced performance.