How often should I clean this filter?

The cleaning interval depends on your operating conditions. Inspect the filter regularly, and clean it when you see a buildup of dirt and debris. K&N sells filter cleaning and oiling kits to maintain your filter.

What size is the filter?

This filter has a 6 inch flange inner diameter, 7.5 inch base outer diameter, 5 inch top outer diameter, and is 6 inches tall. The rubber flange can stretch up to 1/16 of an inch to fit in-between sizes.

Is this filter legal in California?

No, this filter is not CARB-approved. That means it cannot be sold or installed on pollution-controlled vehicles in California.

K&N Universal Chrome Filter 6in Flange ID x 7.5in Base OD x 5in Top OD x 6in H

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Specifications

Brand: K&N
Part #: RC-4381
UPC: 024844246851

K&N Universal Chrome Filter 6in Flange ID x 7.5in Base OD x 5in Top OD x 6in H

Name: K&N Universal Chrome Filter 6in Flange ID x 7.5in Base OD x 5in Top OD x 6in H
Brand: K&N
Price: 104.99 USD
Availability: InStock

$104.99

On Backorder

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

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

Key Features

Washable — clean and re-oil for long life
Reusable — save money compared to disposable filters
Universal fit — works on many applications
Rubber flange — allows secure attachment

⚠️ 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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Fits these vehicles

Ford Mustang 2010
Nissan Pathfinder 2008-2012

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. All filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16 of an inch (1.5mm) to fit in-between sizes. K&N universal air filters are washable and reusable.