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K&N RC-5178 Oval Universal Air Filter

Replacement Filters > Oval Universal Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.9 out of 5 stars   10 Customer Reviews
  • Designed to increase horsepower and acceleration
  • Washable and reusable lifetime air filter
  • Rigid flange for connection to a hose
  • Made in USA
  • One year limited warranty
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. This universal air filter has a rigid flange for a clamp-on hose connection. K&N universal air filters are washable and reusable.

[More Information on Universal Air Filters]

Product Specifications

Air Filter ShapeOval Straight
Filter MaterialCotton Gauze
Height7.875 in (200 mm)
Package Contents1 Air Filter
Package Quantity1
Product StyleUnique Air Filters
Flange Inside Diameter3.688 in (94 mm)
Flange Outside Diameter4 in (102 mm)
Flange Length1 in (25 mm)
Flange TypeOffset
Flange Offset1.5 in (38 mm)
Base Outside Length10.25 in (260 mm)
Base Outside Width7.188 in (183 mm)
Top Outside Length9 in (229 mm)
Top Outside Width5.375 in (137 mm)
Top StyleMetal
Top MaterialBlack Powder Coated
Weight4.2 lb (1.9 kg)
Filter Re-Oiling Amount7.57 oz (224 ml)
Product Box Height7.75 in (197 mm)
Product Box Length10.38 in (264 mm)
Product Box Width10.38 in (264 mm)

K&N RC-5178 Oval Universal Air Filter Product Reviews

Monday, April 10, 2017 - Part RC-5178
Talked to Victor today because the new style filter does not fit my 2005 F250. He was aware of the problem and is shipping me the parts I need. Flat out the best customer service I have ever had. Thanks Victor and K&N.

Lincoln, Nebraska
Wednesday, March 8, 2017 - Part RC-5178
Fit perfect.

LeRoy Eggermont
Binford, North Dakota
Wednesday, November 30, 2016 - Part RC-5178
Great products, fast delivery.

Timothy Fetterhoff
Punxsutawney, Pennsylvania
Tuesday, October 11, 2016 - Part RC-5178

Albert Hastings
Ocean City, Maryland
Monday, March 9, 2015 - Part RC-5178
great product. Need to add note for older model induction kit needs the extra parts to fit the new model filter. 2005 Ford F-250 diesel. Customer service was great in getting parts needed to fit the revised filter to the older filter design. Thanks for your great customer service.

Monday, February 23, 2015 - Part RC-5178
This filter looks and performs great. I purchased as a spare when I clean the other one. Its looks just like the first one I purchased in 2004. Thank you

Tom Downs
Louisville Kentucky
Monday, September 1, 2014 - Part RC-5178
I ordered the wrong part. A product specialist named Joseph set me up with the correct part. He also assisted me in returning the part I had ordered. I received excellent customer service and would recommend this company to anyone who asks.

Sacramento, California