K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority of vehicles on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N. See applicable instruction sheet for details. Our stock replacement air filters for street vehicles are covered by our famous K&N Million-Mile Limited Warranty and will be the last air filter your vehicle will ever need.
  • Designed To Boost Horse Power And Acceleration
  • Washable And Reusable
  • High Air Flow With Exceptional Filtration
  • Lasts Up To 50000 Miles Before Cleaning
  • Works With Original Equip. Mfg. Vehicle Electronics
  • Will Not Void Vehicle Warranty
  • Million Mile Limited Warranty
Attributes
Air Filter Outlet Shape Round
Air Filter Shape Round
Cap Outside Diameter N/A
Country of Origin (Primary) US
Diameter Inside (in.) 12
Diameter Outside (in.) 14
Emission Code Legal US
Filter Material Cotton Gauze
Filter Re-Oiling Amount 3.5 oz (103 ml)
Filter Style Dry
Flanges None
Harmonized Tariff Code (Schedule B) 8421310000
Hazardous Material Code N
Height 6 in (152 mm)
Height (in.) 6
Inner Wire Yes
Inside Diameter 12 in (305 mm)
Life Cycle Status Code 2
Life Cycle Status Description Available To Order
MSDS Required Flag N
NAFTA Preference Criterion Code B
Number of Flanges None
Outside Diameter 14 in (356 mm)
Outside Width 14 in.
Overall Length (in.) NA
Package Contents 1 Air Filter
Package Quantity 1
Product Style Round Air Filter
Shape Round
Top Material None
Top Material/Finish None
Top Style Open
Weight 3.4 lb (1.5 kg)
Width (in.) 14

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K&N E-3770 Round Air Filter

  • Brand: K&N
  • Product Number: E-3770
  • $86.99