How often should I clean and re-oil 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 proper airflow and extends the life of the filter.

What kind of oil should I use to re-oil my K&N air filter?

You should only use K&N air filter oil to re-oil your filter. Other oils may damage the filter material or not provide adequate filtration. K&N air filter oil is specially formulated to work with the filter's cotton gauze material.

What are the dimensions of this filter?

This filter has a 2.75 inch flange ID, a 5.0625 inch base OD, a 3.5 inch top OD, and a 4 inch height. Check these measurements against your available space to ensure proper fitment.

K&N Universal Tapered Filter 2.75in Flange ID x 5.0625in Base OD x 3.5in Top OD x 4in Height

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Specifications

Brand: K&N
Part #: RU-5128
UPC: 024844373779

K&N Universal Tapered Filter 2.75in Flange ID x 5.0625in Base OD x 3.5in Top OD x 4in Height

Name: K&N Universal Tapered Filter 2.75in Flange ID x 5.0625in Base OD x 3.5in Top OD x 4in Height
Brand: K&N
Price: 83.99 USD
Availability: InStock

$83.99

On Backorder

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

Universal tapered 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 long life
Tapered shape — fits a variety of 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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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.