K&N Power Kleen Heavy Duty Air Filter Cleaner – 1 Gallon Concentrated Degreaser, Restores Airflow

K&N Power Kleen is a concentrated degreaser formulated to quickly dissolve old oil and trapped grime from oiled heavy-duty K&N cotton air filters so they can be rinsed clean and restored.

K&N Power Kleen is the manufacturer-recommended cleaner for K&N heavy-duty diesel and commercial air filters. Designed to break down filter build-up without damaging the cotton filtration media, this formula helps recover airflow and filtration efficiency after extended service. Using the correct cleaner preserves the filter material and keeps your warranty intact; avoid substitutes that can harm the media or void coverage.

How does Power Kleen remove heavy-duty filter grime?

Power Kleen acts as a strong degreaser that loosens baked-on oil, dirt and soot embedded in the cotton layers. After soaking and agitation, contaminants are emulsified so they can be flushed away with water, leaving the filter cleaner and ready for re-oiling.

• Concentrated chemical action dissolves old oil and grease
• Formulation safe for K&N cotton media when used as directed
• Rinses clean with standard water pressure—no solvents needed

What are the proper steps to clean a K&N heavy-duty air filter with this product?

Cleaning with Power Kleen is straightforward: apply, soak, agitate, rinse, and let dry before reapplying K&N oil. Follow the manufacturer’s directions for soak time and handling to avoid damage and to maintain performance.

• Spray or immerse filter in solution and allow recommended dwell time
• Gently agitate to free stubborn deposits without tearing media
• Rinse thoroughly with low-pressure water until runoff runs clear
• Air-dry completely before re-oiling with K&N filter oil

Will using Power Kleen affect my filter warranty or the filter material?

When used according to K&N’s instructions, Power Kleen is the only cleaner approved for K&N cotton media filters, so it protects the warranty and the integrity of the filter. Using non-approved cleaners or gasoline can degrade the media and could void coverage.

• Manufacturer-recommended cleaner for K&N oiled cotton filters
• Avoid gasoline or household solvents; they can damage filtration material
• Not suitable for polished or anodized aluminum components

How does restoring a filter with Power Kleen improve performance?

Removing accumulated oil and debris reopens airflow channels and returns the filter closer to its original efficiency. Restored filters help maintain consistent air delivery and can contribute to more reliable engine operation when combined with proper maintenance.

• Clears clogged media to recover airflow efficiency
• Removes deposits that can trap heat or alter filtration characteristics
• Helps filters perform like new when followed by correct re-oiling

Who is this for: K&N Power Kleen is intended for owners of K&N oiled heavy-duty and diesel air filters who need a safe, effective cleaning solution that preserves filter life and warranty. It’s aimed at fleet managers, truck owners, off-road operators, and anyone maintaining K&N cotton media filters; it is not for use on polished or anodized aluminum parts, and gasoline or unapproved cleaners should be avoided to prevent media damage.