Reusable high flow air filters and filtration parts from K&N, the company that invented the washable performance air filter in 1969.

Your Harley breathes better with a K&N. Founded in Riverside, California by Ken Johnson and Norm McDonald, K&N built its name answering one demand from racers: an air filter that flows more air, protects the engine, and never needs throwing away. That original High Flow design has grown into a filtration standard trusted on cars, trucks, and motorcycles worldwide, and it still does exactly what it was built to do on a V-Twin.

Why Riders Choose K&N Filters

Where a disposable paper filter chokes airflow, a K&N uses multiple layers of oiled cotton gauze woven between wire mesh to move dramatically more air while still trapping dust and debris. On a stock Harley engine that typically translates to crisper throttle response and stronger low to mid range pull, with independent testing commonly showing gains in the range of 1 to 5 horsepower. The payoff riders feel most is an engine that responds quicker when you roll on the throttle.

Built to Last the Life of Your Bike

A K&N filter is washable and reusable. Instead of buying a new filter every service interval, you clean it, re-oil it, and put it back in. The pleated media offers a large filtration area for long service intervals, and durable coated top plates resist corrosion for years of use. K&N backs its washable engine air filters with a lifetime limited warranty and its air intake systems with a 10-Year or Million Mile limited warranty. Warranty terms and coverage are set by K&N.

Direct Fit for Harley Applications

K&N filters are engineered to OE specifications for each application, with model specific base seals and sealing beads for an airtight fit in the factory airbox. Most are a true drop-in replacement that installs in minutes with no fabrication, and they arrive pre-oiled and ready to run. Always confirm the correct filter for your model and year before ordering. ⚠️ VERIFY exact fitment against your bike before purchase.