How often should I clean and re-oil my K&N 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. Use a K&N filter cleaning kit to maintain the filter's performance and warranty.

What size is the filter flange?

This filter has a 3 inch inside diameter flange. The pliable rubber can stretch up to 1/16 of an inch to fit slightly larger intake tubes. Always measure your intake tube to ensure a proper fit.

What is the overall size of this filter?

This filter has a 6 inch base outside diameter, a 5.125 inch top outside diameter, and a 5 inch height. Check these measurements against your available space to ensure it will fit your application.

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Trusted Since 1957

Est. 1957

K&N Filter Universal Rubber Filter 3in Flange ID 6in Base OD 5.125in Top OD 5in Height

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Specifications

Brand: K&N
Part #: RU-3570
UPC: 024844031624

K&N Filter Universal Rubber Filter 3in Flange ID 6in Base OD 5.125in Top OD 5in Height

Name: K&N Filter Universal Rubber Filter 3in Flange ID 6in Base OD 5.125in Top OD 5in Height
Brand: K&N
Price: 68.99 USD
Availability: InStock

$68.99

In Stock

Universal rubber air filter fits a variety of applications. Washable and reusable.

Key Features

Washable — clean and re-oil for long life
Reusable — save money compared to disposable filters
Pliable rubber flange — creates a tight seal on imperfect intakes
Flange stretches 1/16 inch — adapts to slightly different sizes

⚠️ 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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Will this fit your vehicle?

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.