How often should I clean my K&N air filter?

K&N recommends cleaning your air filter every 50,000 miles for normal highway use. If you drive in dusty conditions, you may need to clean it more often. Regular cleaning ensures proper airflow and performance.

What do I need to clean and re-oil my K&N air filter?

You'll need a K&N air filter cleaning kit, which includes air filter cleaner and air filter oil. The cleaner removes dirt and grime, and the oil restores the filter's ability to trap particles. Follow the instructions on the cleaning kit for best results.

Does this filter come pre-oiled?

Yes, this K&N air filter comes pre-oiled and ready to install. You don't need to oil it before your initial installation. Just install it and you're good to go.

K&N E-3530 Round Air Filter — 9in OD

Name: K&N Custom Air Filter Round 9in OD x 8in ID x 2.87in H
Brand: K&N
SKU: k-n-engineering-k-n-custom-air-filter-round-9in-od-x-8in-id-x-2-87in-h-t14-482225
Price: 59.15 USD
Availability: BackOrder

K&N Custom Air Filter Round 9in OD x 8in ID x 2.87in H

$59.15

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Washable and reusable round air filter from K&N. Oiled cotton media improves airflow.

Key Features

Washable — save money by cleaning and re-oiling
Reusable — lasts longer than a paper filter
Oiled cotton gauze media — traps particles while improving airflow
Designed to increase horsepower — get more power from your engine
Million Mile Limited Warranty — K&N stands behind their filters

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

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 an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10-Year/Million Mile Limited Warranty. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product!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 an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's No-Hassle Lifetime Limited Warranty. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product!