How often should I clean and re-oil my K&N air filter?

The cleaning interval depends on your driving conditions. K&N recommends cleaning the filter when dirt accumulates to the point where the wire screen is no longer visible. In normal paved-road conditions, this may be every 50,000 miles. Expect to clean it more often in dusty conditions.

What kind of oil should I use on my K&N air filter?

You should only use K&N filter oil to re-oil your filter. Other oils may damage the cotton fibers or reduce the filter's ability to trap dirt and debris. Using the correct oil ensures optimal performance and longevity.

Does this filter come pre-oiled?

Yes, this K&N air filter comes pre-oiled from the factory, ready for installation. You don't need to oil it before its first use. Just install it and you're good to go.

K&N Filter Universal Rubber Filter 4in Flg 6 17/32in OD 8 21/32in H

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K&N Engineering

K&N Filter Universal Rubber Filter 4in Flg 6 17/32in OD 8 21/32in H

Name: K&N Filter Universal Rubber Filter 4in Flg 6 17/32in OD 8 21/32in H
Brand: K&N Engineering
Price: 125.99 USD
Availability: InStock

$125.99

Universal fit air filter from K&N. Washable and reusable, so it's the last filter you'll need.

Key Features

Washable filter — clean and re-oil for extended use
Universal fit — works in many applications

⚠️ 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

Will this fit your vehicle?

Compatible with 34 vehicles

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Since 1957

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Product Details

K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications. Regardless of the angle or offset diameter of the air intake, there is probably a K&N Universal air filter for your equipment. K&N universal air filters are washable and reusable.