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

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

Marsoni

M251S

$83.99

Get it in 3 business days with 1 day shipping. Friday, May 29

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

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Your K&N Custom Air Filter 6.25in OS Width / 9.688in OS Length / 2.188in Height orders ship within 1-2 business days.

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Fast: 2-3 business days
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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
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Had a check engine light come on for cam shaft position. Did some research online about the specific code and found that I could be due to sludge in the engine. Added this and ran for about 30 minutes and then had the oil changed. The light never came back on and the engine is running smooth and quiet. Will definitely use again.

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Reviewed in the United States on April 5, 2026

Verified Purchase

Discovery

Dallas, US

★★★★★ 5

Great product

This brand is great. The car is running great

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Reviewed in the United States on March 4, 2026

Verified Purchase

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