K&N Air Filter Cleaning Kit — Service Kit 99-5000, Aerosol Cleaner & Red Oil to Restore Filter Performance

Keep your reusable K&N high-flow air filter working efficiently with this purpose-built maintenance kit. The K&N Service Kit 99-5000 pairs an industrial-strength degreaser (Power Kleen) with K&N’s red filter oil so you can remove trapped dirt, dissolve old oil, and reapply the correct oil coating. Follow the directions on the bottles for best results; the process is safe for all K&N oiled cotton filters and helps maintain their contaminant-capturing ability.

How does this kit remove embedded dirt and old oil?

The kit uses Power Kleen, a concentrated degreaser formulated to penetrate pleats and break down grease, grime, and residual filter oils. When applied, the cleaner loosens contaminants so they can be rinsed away, restoring the filter’s pleat accessibility and airflow pathways.

• Spray Power Kleen to saturate pleats and dissolve grime.
• Let dwell briefly to break down old oil and particulates.
• Rinse thoroughly with low-pressure water to flush debris out of the cotton layers.

What’s included and why is K&N red filter oil important?

The kit contains Power Kleen degreaser and K&N red filter oil formulated to remain suspended in the cotton media. Proper filtration depends on the oil coating to trap fine particles without overly restricting airflow, and the K&N oil is calibrated for that balance.

• Power Kleen degreaser dissolves old oil and trapped contaminants.
• K&N red filter oil rehumbs pleats to capture fine dust and particles.
• Using both products as directed helps return the filter to near-original performance.

How do I perform the four-step cleaning process?

The maintenance routine is straightforward: spray, rinse, dry, and re-oil. Each step prepares the filter for the next so that dirt is removed efficiently and fresh oil is applied evenly for optimal trapping ability.

• Spray Power Kleen across the filter pleats until saturated.
• Rinse gently with low-pressure water from the clean side outward.
• Allow the filter to air dry completely before applying K&N oil.
• Apply the red filter oil evenly to the pleats and let it wick into the cotton.

Will this kit work with every K&N oiled cotton filter?

Yes — the kit is engineered specifically for all K&N oiled cotton high-flow filters, including panel, cone, and round types. It’s not intended for dry or non-oiled filters, which require different care.

• Compatible with K&N oiled cotton panel and conical filters.
• Not recommended for dry or non-oiled aftermarket filters.
• Follow the included instructions for volumes and drying times to avoid over-oiling.

Who is this for? The K&N Air Filter Cleaning Kit is designed for vehicle owners who use reusable K&N oiled cotton filters and want a reliable maintenance solution to preserve airflow and filtration capacity. It’s ideal for DIY mechanics, car and motorcycle enthusiasts, and fleet managers who prefer a reusable filter system and want to maintain peak performance and longevity through regular, correct servicing.

Ingredients

Cleans all K&N Oil-Contaminated Air Filters