The K&N E-4505 replacement air filter is constructed with an oil-free synthetic media. This high performance air filter provides low restriction, a longer service interval and excellent...

The K&N E-4522 replacement air filter is constructed using an oil-free synthetic media. A tube of sealing grease is provided to ensure an airtight seal. The E-4522 provides outstanding...

The K&N E-4420 replacement air filter is constructed with layers of woven cotton for outstanding filtration and low air restriction to help your engine run more efficiently. This air filter can...

The K&N E-4370 Air Filter fits some Briggs & Stratton, Cub Cadet, Generac, Jacobsen, John Deere, and Walker models. It's an oiled cotton gauze direct replacement air filter intended...

K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide...