K&N RC-2870 | Air Cleaner Assembly

Part Number
Universal Clamp-On Air Filter
Special Price $48.88 Regular Price $57.51
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K&N's Universal Pancake Style 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 of an inch (1.5mm) to fit in-between sizes. K&N universal air filters are washable and reusable.



  • Universal Clamp-On Air Filter
  • Clamp-On Washable and Reusable Air Filter
  • Designed To Increase Horsepower And Acceleration
  • Universal Clamp-on Air Filter
  • High Air Flow With Excellent Filtration
  • Malleable Flanges
  • Regardless of the angle or offset diameter of an air intake| there is probably a K/N Universal air filter for your equipment. K/N universal air filters are washable and reusable.
  • One Year Limited Warranty


Automotive Item GradeHigh Performance
CARB/Air Horn Diameter1.750 in.
Filter MaterialCotton Gauze
Flange Angle0 Degree
Flange Inside Diameter1.750 in. (44mm)
Flange Length0.625 in. (16mm)
Flange Offset0.000 in. (0mm)
Flange TypeCentered
Frame DesignFlexible
Inner WireNo
Item Height1.500 in. (38mm)
Item Weight0.600 lbs. (0.3 kg)
Machine WashableYes
Number of Flanges1
Oil IncludedYes
Outside Diameter3.500 in. (89mm)
Package Content1
Package Contents1 Air Filter, 1 K&N 1/2oz Filter Oil
Package MaterialPaperboard
Package Quantity1
Package TypeBox
Product Box Height4.250 in. (108mm)
Product Box Length4.630 in. (117mm)
Product Box Width4.630 in. (117mm)
Prop 65 (C, R or CR)CR
Prop 65 Warning Labelhttps://www.knfilters.com/images/l/prop65.jpg
TitleK&N RC-2870 Universal Clamp-On Air Filter
Top MaterialChrome
Top StyleMetal
WARNING CA Proposition 65Yes
WARNING CA Proposition 65 MessageWARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov


Customer Questions
Can K&N filters get wet?
No, K&N filters should not get wet.
When to clean K&N air filter?
K&N air filters should be cleaned approximately every 50,000 miles (80,000 kilometers) or as recommended by the manufacturer.
Will K&N filter increase mpg?
It is possible for a K&N air filter to slightly improve fuel efficiency (MPG) under certain conditions.
What does K&N mean?
K&N stands for the names of the two founders of the company, Ken Johnson and Norm McDonald.
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