K&N RU-4870

Universal Air Filters > Universal Rubber Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   5.0 out of 5 stars   4 Customer Reviews
List Price: $73.54
Your Price: USD $49.99

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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

Product Specifications

Air Filter Large End Diameter6 in (152 mm)
Air Filter ShapeRound Tapered
Base Outside Diameter6 in (152 mm)
Filter MaterialCotton Gauze
Filter Re-Oiling Amount1.24 oz (37 ml)
Flange Inside Diameter2.75 in (70 mm)
Flange Length2 in (51 mm)
Flange TypeCentered
Height6.5 in (165 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height11 in (279 mm)
Product Box Length6.38 in (162 mm)
Product Box Width6.38 in (162 mm)
Product StyleRound Tapered Universal Air Filter
Top Material/FinishNone
Top Outside Diameter5 in (127 mm)
Top StyleRubber
Weight1.2 lb (0.5 kg)

Product Reviews

Review part RU-4870
Thursday, October 08, 2015 - Part RU-4870
Typical excellent quality. Fits perfect. Highly recommended.

Harry S.
Atlanta, GA
Tuesday, October 06, 2015 - Part RU-4870
Thanks got my air filter. My car is running even better.

Monday, February 16, 2015 - Part RU-4870
Perfect replacement for my old and gunked up K&N filter. Easy install and looks and runs great with my typhoon cold air intake.

Santa Clarita, California
Monday, January 06, 2014 - Part RU-4870
Thanks much - perfect fit

Tim Chies