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K&N RC-4780 4.9 out of 5 stars 8 Customer Reviews
Universal Air Filters > Universal Air Filter

List Price: $89.12
Your Price: USD $59.99

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RC-4780
 
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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" (1.5mm) to fit in-between sizes. K&N universal air filters are washable and reusable.

[More Information on Universal Air Filters]
  • Designed to increase horsepower and acceleration
  • Hundreds of sizes and shapes for most applications
  • High air flow with excellent filtration
  • Clamp-on washable and reusable air filter
  • Malleable flanges
  • Not legal for highway use in states adopting California emission regulations
  • One year limited warranty

Available Information


Product Specifications

Air Filter Large End Diameter6.625 in (168 mm)
Air Filter ShapeRound Tapered
Base Outside Diameter6.625 in (168 mm)
Filter MaterialCotton Gauze
Filter Re-Oiling Amount6.79 oz (201 ml)
Flange Inside Diameter4 in (102 mm)
Flange Length1.688 in (43 mm)
Flange TypeCentered
Flanges1
Footnote 1Base Has (2) 7/8" Vents
Footnote 2Base Has Opt. 1/2" Vent
Footnote 3Base Has 23/32 Vent
Height9.5 in (241 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height7.75 in (197 mm)
Product Box Length14.38 in (365 mm)
Product Box Width7.38 in (187 mm)
Product StyleRound Tapered Universal Air Filter
Top Material/FinishBlack Powder Coated
Top Outside Diameter5.25 in (133 mm)
Top StyleMetal
Weight3.3 lb (1.5 kg)


Product Reviews


  Excellent product. Replaced my 15 year old original K&N filter with exact match. Great service & will use again.
Terry A Ware Foresthill, California
  This filter offers more breathing surface area than the stock filter or K&N flat replacement filter that goes in the stock air filter box. I'm on my 4th replacement filter. The assembly is easy to remove, cleaned and serviced with the K&N kit that I can buy at many locations. It was a good choice in choosing this product to upgrade the air filter. I ordered a replacement filter online through the K&N website early on a Wednesday and received it the next day. Couldn't ask for a better quality product or service. Thank you.
James Hesperia, California
  Very fast delivery.
Jeff Harner South Riding, Virginia
  Purchased as a replacement filter on my 5.9 Cummins. Original filter (with cleanings) logged over 300,000 miles. Here's to 300,000 more.
Mark C Delaware
  Excellent product. Ordering was fast and easy with very quick delivery.
Terry Grass Valley, California
  Upon first buying the aftermarket intake along with a turbo back exhaust, I gained almost 5 miles per gallon. I used the first filter for 10 years and only replaced it because of the dents I put in the screen. I wouldn't consider any other filter on my Dodge Diesel Truck. Thank You.
Chris Randal Midland, Texas
  Love this filter on my truck. I bought an extra one so I can switch without having to wait after cleaning. Now I always have a clean one ready to go.
James Riley Middleburg, Florida