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K&N RC-5178

Replacement Filters > Universal Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   5.0 out of 5 stars   6 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
Base Outside Length10.25 in (260 mm)
Base Outside Width7.188 in (183 mm)
Filter MaterialCotton Gauze
Filter Re-Oiling Amount7.57 oz (224 ml)
Flange Inside Diameter3.688 in (94 mm)
Flange Length1 in (25 mm)
Flange Offset1.5 in (38 mm)
Flange Outside Diameter4 in (102 mm)
Flange TypeOffset
Height7.875 in (200 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height7.75 in (197 mm)
Product Box Length10.38 in (264 mm)
Product Box Width10.38 in (264 mm)
Product StyleUnique Air Filters
Top Material/FinishBlack Powder Coated
Top Outside Length9 in (229 mm)
Top Outside Width5.375 in (137 mm)
Top StyleMetal
Weight4.2 lb (1.9 kg)

K&N RC-5178 Product Reviews

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
Monday, December 2, 2013 - Part RC-5178
Perfect fit.

Oxford, Georgia
Wednesday, October 30, 2013 - Part RC-5178
Excellent product for my F-350 Ford 6.0.

Bob Shelton
Nampa, Idaho
Wednesday, October 30, 2013 - Part RC-5178
K&N filters are simply the best products available. They are extremely well made and the their customer service and support is unmatched!

Dan Bray
Fort Mill, South Carolina