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

K&N recommends cleaning and re-oiling your 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 optimal 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 both the cleaner and the oil. The cleaner removes dirt and grime, and the oil restores the filter's ability to trap contaminants and improve airflow. 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 the initial installation. Just drop it into your factory air box and you're good to go.

K&N E-3402 Air Filter | 7in OD x 5.5in ID x 2in H

Name: K&N Custom Air Filter 7in OD X 5 1/2in ID x 2in H
Brand: K&N
SKU: k-n-engineering-k-n-custom-air-filter-7in-od-x-5-1-2in-id-x-2in-h-t14-236261
Price: 59.15 USD
Availability: InStock

K&N Custom Air Filter 7in OD X 5 1/2in ID x 2in H

$59.15

Only 9 left in stock

Improved airflow and filtration in a reusable filter. Washable and ready to drop into your factory air box.

Key Features

Washable filter — clean and re-oil for extended use
Oiled cotton media — improved airflow and filtration
Direct drop-in replacement — fits right in the factory air box
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!