New K&N Oval Tapered Univeral Air Filter Available

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K&N has sold millions of air filters for just about everything that has an engine. We test filters both in house and at independent labs to make sure our air filters provide outstanding air flow and filter protection.

K&N Universal Air Filter RC-5178
K&N Universal Air Filter RC-5178
K&N is proud to release its latest universal air filter, the RC-5178. This oval tapered universal air filter has a black powder coated stainless steel top with a stud for secure mounting. It comes pre-treated with K&N filter oil so it is ready for use right out of the box.

The flange is rigid and intended for clamp-on hose attachment. The RC-5178, like all K&N universal air filters is a washable reusable filter. It is also warranted against defective material or workmanship for one year from the date of purchase with no mileage limitations.

RC-5178 is also the replacement air filter for K&N air intake system 57-2546-1. The air filter may have the number 04931 stamped on the base place, however, this is not the part number.

K&N consistently adds new filters to its extensive catalog. Regardless of the shape or size K&N probably has a universal air filter to fit your specific needs. Find K&N universal air filters for your needs by using the Universal Air Filter Search by Dimension on

Use the K&N application search to find all K&N products for your vehicle then use the K&N dealer search to find a K&N dealer near you.

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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