K&N Engineering K&N Replacement Element for RK-3954 Custom Air Filter E-3990
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Product details
| Management number | 206308513 | Release Date | 2025/10/31 | List Price | $30.00 | Model Number | 206308513 | ||
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KN Drop in Air Filters
Air Filter
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.
Hasbro
Air and Fuel Delivery
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