K&N Custom Air Filter 6.25in OS Width / 9.688in OS Length / 2.188in Height

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.

Additional Information

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.

Part Type

Engine Air Filter

• Designed to boost horsepower and rate of acceleration
• High air flow filter media provides exceptional filtration
• Million Mile Limited Warranty®
• Replacement air filter for specific RK Series air cleaner assemblies.
• Washable and reusable

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Reference Information