K&N Releases New 4.5 Inch Diameter Flange Universal Air Filter

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K&N Engineering manufactures universal air filters for a wide variety of applications. Regardless of the angle, offset diameter of the air intake, there is a K&N Universal Air Filter for your equipment.
K&N's RC-5166 Universal Air Filter
K&N's RC-5166 Universal Air Filter

The new RC-5166 is constructed like all K&N Universal Air Filters, with ultra-strong pliable rubber flanges which absorb vibration and allow for secure attachment. Universal air filter flanges can stretched for up to 1/16 inch (1.5mm) to fit in-between sizes. The black powder coated filter top has a threaded stud for secure mounting.

The flange length is 1.375 inches (35 mm) which allows plenty of room to clamp around many engine intakes. K&N Universal Air Filters are ideal for extended use in dirty and dusty conditions. Washable are reusable, the RC-5166, like all other K&N Filters is a work horse. It is designed to provide high air flow and increase horsepower and acceleration while providing excellent engine protection.

There is a great deal of engineering behind every K&N Filter. More than 35 years of research and development has made K&N the leader in air filtration technology.

Find K&N products for your vehicle using the K&N application search then use the K&N dealer search to find a K&N dealer in your part of the world.

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K&N Engineering, Inc., with headquarters in Riverside, California, has been the world's leader in performance filter technology since 1969, serving the needs of the automotive, motorcycle, marine, industrial and military markets. K&N is heavily involved in nearly every form of motorsports from off-road and powersports to drag racing, stock cars and road racing. For more information about K&N Filters, please contact K&N Engineering, Inc., P.O. Box 1329, Riverside, CA 92502-1329, (800) 213-4182 for a dealer near you, (800) 858-3333 for technical service/questions, (951) 826-4001 Fax, e-mail, or visit