KN air filter cleaner is the only cleaner recommended to clean KN air filter elements. KN air filter cleaner works to dissolve dirt build up and old filter oil and can be washed away with water.
K&N Air Filter Cleaner KNF-99-0640
Huile filtre à air moto K&N Power Kleen 99-0635 - EuroBikes
K&N 99-0635 - Power Kleen Air Filter Cleaner (1 gallon) - CSPRacing
K&N Hot Rod Air Intake
K&N Air Filter Cleaner and Degreaser: Power Kleen; 1
K&N Power Kleen, Air Filter Cleaner - 1 gal 99-0635 - Advance Auto
K&N Power Kleen Air Filter Cleaner (1 gallon) - Extreme – Extreme
Corvette C1 Air Filter Cleaners
Air Filter Cleaner - 99-0635 K&N Pod Filter - 1 Gallon