K&N Unique Air Filter - Replacement Element for RK-3931 - ( K&N Engineering E-3975 )

The K&N replacement air filter for RK Series air cleaner assemblies is designed to increase horsepower and acceleration while providing excellent filtration. The air filter is washable and reusable and designed to be used as a replacement air filter for specific K&N RK Series air cleaner assemblies for Harley-Davidson motorcycles. The air filter is covered by the famous K&N Million-Mile Limited Warranty.

The K&N replacement air filter for RK Series air cleaner assemblies, designed for Harley-Davidson motorcycles, are designed to increase horsepower and acceleration while providing excellent filtration.

K&N Unique Air Filter - Replacement Element for RK-3931

Filtre à air spécifique

Filtro de aire a la medida

Unique Air Filter

Air Filter