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

The cleaning frequency depends on your driving conditions. K&N recommends cleaning the filter when you notice a buildup of dirt or debris, or every 50,000 miles under normal highway driving. Off-road driving may require more frequent cleaning.

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

You'll need a K&N filter cleaning kit, which includes a cleaner and air filter oil. The cleaner removes dirt and grime, while the oil restores the filter's ability to trap contaminants and improve airflow. Follow the instructions included with 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-1963 Replacement Air Filter

Name: K&N Replacement Air Filter FORD V8-390,427;3-2BBL,2-4BBL.
Brand: K&N
SKU: k-n-engineering-k-n-replacement-air-filter-ford-v8-390-427-3-2bbl-2-4bbl-t14-235913
Price: 135.46 USD
Availability: BackOrder

K&N Replacement Air Filter FORD V8-390,427;3-2BBL,2-4BBL.

$135.46

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 air filter. Designed to improve airflow and increase horsepower.

Key Features

Washable — clean and re-oil for extended use
Reusable — lasts for the lifespan of your vehicle
Oiled cotton media — improves airflow and captures contaminants
Direct drop-in replacement — fits right in the factory air box
Backed by K&N's No-Hassle Lifetime Limited Warranty

⚠️ 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!