How often should I clean this 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.

What are the dimensions of the filter?

The K&N RU-4630XD has a 3.5 inch flange diameter, a 5.5 inch base, a 4.5 inch top, and a 6.5 inch height. Check these measurements against your available space to ensure proper fitment.

Does this filter come pre-oiled?

Yes, this filter comes pre-oiled from the factory, ready to install. You'll only need to oil it after cleaning. Use genuine K&N filter oil to maintain its filtration properties.

K&N Universal Air Filter 3-1/2in Flange / 5-1/2in Base / 4-1/2in Top / 6-1/2in Height

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K&N Engineering

K&N Universal Air Filter 3-1/2in Flange / 5-1/2in Base / 4-1/2in Top / 6-1/2in Height

Name: K&N Universal Air Filter 3-1/2in Flange / 5-1/2in Base / 4-1/2in Top / 6-1/2in Height
Brand: K&N Engineering
Price: 94.99 USD
Availability: InStock

$94.99

Universal fit K&N air filter for custom applications. Washable and reusable.

Key Features

Washable filter — clean and re-oil for long life
Pliable rubber flange — creates a tight seal on various intake shapes
Universal fit — works on 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 30 vehicles

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Product Details

Regardless of the angle or offset diameter of an air intake, there is probably a K&N Universal air filter for your equipment. K&N universal air filters are washable and reusable.
3-1/2in.FLG; 5-1/2in.B; 4-1/2in.T; 6-1/2in.H

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.